Journal articles on the topic 'Climatic changes Indonesia'
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Ardi, Ryan Dwi Wahyu, Aswan, Khoiril Anwar Maryunani, Eko Yulianto, Purna Sulastya Putra, Septriono Hari Nugroho, and Istiana. "Last Deglaciation—Holocene Australian-Indonesian Monsoon Rainfall Changes Off Southwest Sumba, Indonesia." Atmosphere 11, no. 9 (August 31, 2020): 932. http://dx.doi.org/10.3390/atmos11090932.
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Previous studies suggested the multi-millennial scale changes of Australian-Indonesian monsoon (AIM) rainfall, but little is known about their mechanism. Here, AIM rainfall changes since the Last Deglaciation (~18 ka BP) are inferred from geochemical elemental ratios (terrigenous input) and palynological proxies (pollen and spores). Pollen and spores indicate drier Last Deglaciation (before ~11 ka BP) and wetter Holocene climates (after ~11 ka BP). Terrigenous input proxies infer three drier periods (i.e., before ~17, ~15–13.5, and 7–3 ka BP) and three wetter periods (i.e., ~17–15, ~13.5–7, and after ~3 ka BP) which represent the Australian-Indonesian summer monsoon (AISM) rainfall changes. Pollen and spores were highly responsive to temperature changes and showed less sensitivity to rainfall changes due to their wider source area, indicating their incompatibility as rainfall proxy. During the Last Deglaciation, AISM rainfall responded to high latitude climatic events related to the latitudinal shifts of the austral summer ITCZ. Sea level rise, solar activity, and orbitally-induced insolation were most likely the primary driver of AISM rainfall changes during the Holocene, but the driving mechanisms behind the latitudinal shifts of the austral summer ITCZ during this period are not yet understood.
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Mulyasari, Gita, Agung Trisusilo, Nola Windirah, Ira Nurhayati Djarot, and Agusta Samodra Putra. "Assessing Perceptions and Adaptation Responses to Climate Change among Small-Scale Fishery on the Northern Coastal of Bengkulu, Indonesia." Scientific World Journal 2023 (January 17, 2023): 1–15. http://dx.doi.org/10.1155/2023/8770267.
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Small-scale fisheries are facing significant challenges from climate change. Fishers feel the impact of climate change, which forces them to adapt. We, therefore, analyzed local climatic changes, fishers’ perceptions regarding climate change and its impacts, adaptation responses, and determinants. Three decades of meteorological data were analyzed (1985–2020). A total of 300 fishermen were selected using quota sampling and interviewed using a structured questionnaire. Data were analyzed using the descriptive and binary logit regression models to explain the determinants of adaptation responses. The findings indicate that fishers’ perceptions of climatic changes align with historical climatic data. Typologies of adaptation responses used in the study showed that time fishing adjustment was the most widely used adaptation option by fishermen. For this reason, fishermen are very active in looking for information about climate change to help them find the right time to go to sea and reduce the risk of climate change. Analysis using the binary logit regression model showed that fishing income, boat power, and climate change perceptions were the significant ( p < 0.1 ) factors significantly influencing adaptation responses. Therefore, to strengthen the adaptation responses in small-scale fisheries, fishers’ perceptions should be considered.
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Hermon, Dedi. "Impacts of land cover change on climate trend in Padang Indonesia." Indonesian Journal of Geography 46, no. 2 (December 31, 2014): 138. http://dx.doi.org/10.22146/ijg.5783.
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ἀe purpose of this study was to analyze the trend of climate change through changes in the elements of Green House Gases (GHGs), includes the trend of CO2, N2O, and CH4. ἀe change of the extreme rainfall and temperature indices due to land cover change into developed area in Padang. IdentiḀcation and analysis trends of climate change and extreme climatic events were analyzed by using RclimDex the Expert Team for Climate Change Detection and Indices (ETCCDMI) technique. Where as the analysis and interpretation of land cover changes into developed area used Landsat TM 5 and Landsat 1985 7 ETM + of 2011 by ERDAS 9.2 GIS with the supervised classiḀcation method and GIS Matrix. ἀe results of the study provide informations of land cover changes into developed area at forest land (11,758.9 ha), shrub (3,337.3 ha), rice Ḁelds (5,977.1 ha), and garden (5,872.4 ha). It has an implication on increasing of the ele-ments of GHGs concentration such as CO2 (14,1 ppm), N2O (5,4 ppb) and CH4 (24,8 ppb). ἀis condition lead to an extreme temperature and presipitation indexs trends in Padang.
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Honjo, K., I. Furukawa, and M. H. Sahri. "Radial Variation of Fiber Length Increment in ACACIA MANGIUM." IAWA Journal 26, no. 3 (July 15, 2005): 339–52. http://dx.doi.org/10.1163/22941932-02603005.
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The radial variation of fiber length increment (due to intrusive growth) and its relation with internal and external (climatic) factors were investigated for Acacia mangium trees collected in Indonesia and Malaysia. Wood fiber length and fiber length increment were approximated with respect to the distance from the pith (x) by a logarithmic function and vessel element length by a linear function. The results were y = 0.14 . In(x) + 0.48, y = 0.0005 . x + 0.20, and y = 0.13 . ln(x) + 0.31, respectively. The radial variation of fiber length was related to the growth rate rather than the age of the cambium. The results of the cross-correlation function between wood fiber length increment and climatic factors showed that fiber lengths responded to changes in precipitation with a time lag of between zero to four months.
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Honjo, K., I. Furukawa, and M. H. Sahri. "Radial Variation of Fiber Length Increment in Acacia Mangium." IAWA Journal 26, no. 3 (2005): 339–52. http://dx.doi.org/10.1163/22941932-90000119.
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The radial variation of fiber length increment (due to intrusive growth) and its relation with internal and external (climatic) factors were investigated for Acacia mangium trees collected in Indonesia and Malaysia. Wood fiber length and fiber length increment were approximated with respect to the distance from the pith (x) by a logarithmic function and vessel element length by a linear function. The results were y = 0.14 . ln(x) + 0.48, y = 0.0005 . x + 0.20, and y = 0.13 . ln(x) + 0.31, respectively. The radial variation of fiber length was related to the growth rate rather than the age of the cambium. The results of the cross-correlation function between wood fiber length increment and climatic factors showed that fiber lengths responded to changes in precipitation with a time lag of between zero to four months.
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Widayat, Agus Haris, Bas van de Schootbrugge, Wolfgang Oschmann, Komang Anggayana, and Wilhelm Püttmann. "Climatic control on primary productivity changes during development of the Late Eocene Kiliran Jao lake, Central Sumatra Basin, Indonesia." International Journal of Coal Geology 165 (August 2016): 133–41. http://dx.doi.org/10.1016/j.coal.2016.08.008.
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Nahib, Irmadi, Wiwin Ambarwulan, Ati Rahadiati, Sri Lestari Munajati, Yosef Prihanto, Jaka Suryanta, Turmudi Turmudi, and Anggit Cahyo Nuswantoro. "Assessment of the Impacts of Climate and LULC Changes on the Water Yield in the Citarum River Basin, West Java Province, Indonesia." Sustainability 13, no. 7 (April 1, 2021): 3919. http://dx.doi.org/10.3390/su13073919.
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Changes in climate and land use land cover (LULC) are important factors that affect water yield (WY). This study explores which factors have more significant impact on changes in WY, spatially and temporally, within the Citarum River Basin Unit (RBU), West Java Province, Indonesia with an area of ±11.317 km2. The climate in the area of Citarum RBU belongs to the Am climate type, which is characterized by the presence of one or more dry months. The objectives of the study were: (1) To estimate a water yield model using integrated valuation of ecosystem services and tradeoffs (InVEST), and (2) to test the sensitivity of water yield (WY) to changes in climate variables (rainfall and evapotranspiration) and in LULC. The integration of remote sensing (RS), geographic information system (GIS), and the integrated valuation of ecosystem services and tradeoffs (InVEST) approach were used in this study. InVEST is a suite of models used to map and value the goods and services from nature that sustain and fulfill human life. The parameters used for determining the WY are LULC, precipitation, average annual potential evapotranspiration, soil depth, and plant available water content (PAWC). The results showed that the WY within the territory of Citarum RBU was 12.17 billion m3/year, with mean WY (MWY) of 935.26 mm/year. The results also show that the magnitude of MWY in Citarum RBU is lower than the results obtained in Lake Rawa Pening Catchment Areas, Semarang Regency and Salatiga City, Central Java (1.137 mm/year) and in the Patuha Mountain region, Bandung Regency, West Java (2.163 mm/year), which have the same climatic conditions. The WY volume decreased from 2006, to 2012, and 2018. Based on the results of the simulation, climatic parameters played a major role affecting WY compared to changes in LULC in the Citarum RBU. This model also shows that the effect of changes in rainfall (14.06–27.53%) is more dominant followed by the effect of evapotranspiration (10.97–23.86%) and LULC (10.29–12.96%). The InVEST model is very effective and robust for estimating WY in Citarum RBU, which was indicated by high coefficient of determination (R2) 0.9942 and the RSME value of 0.70.
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Ardi, R. D. W., Aswan, K. A. Maryunani, E. Yulianto, P. S. Putra, and S. H. Nugroho. "Australian–Indonesian monsoon rainfall responses to the northern hemisphere climatic changes prior to the Last Glacial Maximum: an early indication." IOP Conference Series: Earth and Environmental Science 1047, no. 1 (July 1, 2022): 012031. http://dx.doi.org/10.1088/1755-1315/1047/1/012031.
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Abstract The evidences of Australian-Indonesian monsoon (AIM) rainfall response to the northern hemisphere climatic changes from both marine and terrestrial proxies are well established for the Last Glacial Maximum (LGM) – Deglaciation time interval but not in the previous time interval. Sediment cores from off south Sumba (ST10) and off north Sumba (Sumba strait) (ST14) were analyzed using X-Ray Fluorescence method to obtain elemental proxies. Elemental ratios which reflect terrigenous input (Ti/Ca and K/Ca) are used to infer the AIM rainfall changes since ~42 ka BP. AIM rainfall changes indicate a clear response to the Heinrich Events prior to the LGM (H2, H3, and H4). H2 and H3 are corroborated with the AIM rainfall increases in off south Sumba (~24 – 26 ka BP and ~30 – 31 ka BP) while the AIM rainfall increase (~39 – 41 ka BP) in the Sumba strait indicates a response to H4. The cooler temperature during the Heinrich Events could enhance the Northern Hemisphere (NH) cold surges which eventually pushed the Austral summer Intertropical Convergence Zone (ITCZ) southward in a similar fashion to the Last Deglaciation period (~18 – 11 ka BP). The southward movement of Austral summer ITCZ should increase the research area’s exposure time to the Tropical Rain Belt (TRB) during the Australian – Indonesian summer monsoon (AISM) which eventually triggers the AIM rainfall increase. The Sumba strait AIM rainfall unresponsiveness to H2 and H3 could be related to the constant exposure time to the TRB which indicates that the southern limit of Austral summer ITCZ during its northernmost shift didn’t reach the latitude of Sumba Strait. Comparison with other proxies from the same site and other rainfall proxies from southern Indonesia and the northern Australia regions is needed to confirm the spatial extend of those responses.
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Athaillah, Farida, Muhammad Hambal, Yudha Fahrimal, Muttaqien Bakri, Ellyawardani Ellyawardani, Henni Vanda, and Abu Hassan Ahmad. "8. Aedes Mosquitoes Abundance In Relation To Some Climatic Factors In Banda Aceh City, Indonesia." International Journal of Tropical Veterinary and Biomedical Research 1, no. 1 (May 1, 2016): 57–64. http://dx.doi.org/10.21157/ijtvbr.v1i1.5393.
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Dengue viruses and their mosquito vectors as an endemic disease in Indonesia are sensitive to their environment. The rising incidence of dengue is influenced by many factors, climate is one of them. Temperature, rainfall and humidity have well-defined roles in the transmission cycle. Changes in these conditions may contribute to increasing incidence. The purpose of this research was to determine the correlation between the dengue vector abundance and some climatic factors (temperature, rainfall and humidity) in Banda Aceh city after the tsunami. We also examined the potential effects of climate variations on dengue epidemiological pattern in indoor and outdoor of tsunami affected areas in Banda Aceh City during January – December 2010. Data processing was performed using SPSS and will be presented in tabular form. Pearson correlation test for parametric test and Spearman correlation coefficients for non-parametric test were performed to investigate the overall correlation between Aedes eggs abundance rates and some meteorological variables such as temperatures (0C), relative humidity (RH), and rainfall (RR). The result showed that the total egg populations in indoor and outdoor of tsunami affected areas are not significantly different among those factors. There was a positive correlation between eggs abundance and rainfall, but negatively correlated with temperature and relative humidity. From this result we can conclude that the abundance of Aedes eggs is not significantly correlated to temperature and humidity in indoor and outdoor of tsunami affected areas in Banda Aceh City.
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Oktavia, Fetrina, Sahuri, and Dwi Shinta Agustina. "Progress of Rubber Breeding Program to Support Agroforestry System in Indonesia." E3S Web of Conferences 305 (2021): 03006. http://dx.doi.org/10.1051/e3sconf/202130503006.
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The use of superior rubber planting materials is one of the most important components of technology to support the cultivation and sustainability of the natural rubber industry. The effect of the genetic components of planting materials to the rubber productivity can reach 60%, and the rest is the influence of agro-climatic conditions. The aim of the rubber plant breeding program is to obtain the new superior rubber clones that have a high latex yielding potential and good agronomic characters. The fluctuations of natural rubber price and climate changes also influence the direction and objectives of the rubber plant breeding program. To deal with the conditions, it is important to provide the rubber agroforestry technology by through intercropping of rubber with various other crops. The article will provide the information about progress of rubber breeding program in Indonesia and it is role in supporting agroforestry system. Several of new superior rubber clones have been released by IRRI, and some of these clones such as IRR 112 and IRR 118 had been planting with rice, corn, and other crops by through rubber agroforestry system. The system was estimated be able to maintain latex yielding potential of clones as well as farmers’ income can be improved.
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Didenko, Iryna, Kseniia Volik, Tetiana Vasylieva, Serhiy Lyeonov, and Nataliia Antoniuk. "Environmental migration and country security: Theoretical analysis and empirical research." E3S Web of Conferences 234 (2021): 00010. http://dx.doi.org/10.1051/e3sconf/202123400010.
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The article considers the impact of environmental changes on population migration and security of countries. Theoretical aspects of Environmental migration, in particular its essence and types, are studied. The main directions of scientific research in this field are considered. In particular, much attention is about finding ways to adapt to changes in the environment and minimize the negative consequences of these changes to achieve sustainable development in both regions and countries. The study found that internal population movements are mainly due to climatic factors such as storms and floods. It was determined that in 2019, about 52% of new mixing was caused by storms and 40% - by floods. Countries for which the phenomenon of ecological migration is most characteristic are India, the Philippines, the United States, China, and Indonesia. The main problems that arise in the study of Environmental mobility of the population are identifiedThey are mainly related to the lack of information and statistical base for conducting qualitative and diverse research.
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Zukifli, Afni. "THE IMPLEMENTATION OF FOREST AND LAND FIRE MANAGEMENT POLICY IN INDONESIA DURING THE COVID-19 PANDEMIC." Indonesian Journal of Forestry Research 9, no. 2 (October 31, 2022): 197–214. http://dx.doi.org/10.20886/ijfr.2022.9.2.197-214.
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The coronavirus outbreak (COVID-19) has raised questions about changes in subsequent environmental effects, mainly forest and land fires. This paper evaluates the implementation of land and forest fire management policies in Indonesia during the COVID-19 pandemic, particularly in 2020. A qualitative approach was conducted in policy implementation analysis based on George Edward III's theory by looking at bureaucratic structure, resources, communication, and disposition factors. The research focused on the operational work of the Forest and Land Fire Brigade, known as Manggala Agni, in Indonesia. The results showed that the collaborative work of Manggala Agni and the other forest and land fire task forces successfully reduced the hotspots; hence there was a significant decrease in the burned area. It is also inseparable from climatic factors. During this period there was no haze disaster although the task of controlling forest and land fires still encountered several obstacles during the pandemic. This is because of training, technology transfer, budget support, and synergy between stakeholders and Manggala Agni’s team members, so a significant reduction in forest and land fires during 2020 can be achieved.
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Widayati, Atiek, Bastiaan Louman, Elok Mulyoutami, Edi Purwanto, Koen Kusters, and Roderick Zagt. "Communities’ Adaptation and Vulnerability to Climate Change: Implications for Achieving a Climate-Smart Landscape." Land 10, no. 8 (August 3, 2021): 816. http://dx.doi.org/10.3390/land10080816.
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Rural landscapes in many parts of Indonesia are rapidly being transformed, due to the expansion of agrocommodity plantations—oil palm in particular. At the same time, communities in those landscapes face declining crop yields and ecosystem degradation as a result of both climate and non-climate factors. We assessed local perceptions on climate stressors, adaptation and vulnerability using focus group discussions in Ketapang, West Kalimantan. We found that the main perceived climatic stressors were extreme and unpredictable seasons, fires, and saltwater intrusion, affecting ecosystem services and agricultural production. Land clearing and forest loss were mentioned as exacerbating non-climatic stressors. Respondents indicated willingness to adapt to these changes by investing in long-term measures, such as tree-planting. To adapt to yield declines, respondents indicated that many farmers shifted from rubber to oil palm. Such adaptation actions benefit households in the short term but may be at odds with long-term adaptation objectives at the landscape level. Finally, we found that perceptions about vulnerability differed between landscapes, and between communities at the landscape level and stakeholders at the district level. This stresses the importance of participatory and inclusive planning and multi-stakeholder processes towards context-based climate action planning to accommodate the differences in contexts and scale, and to reconcile the differences in perceptions.
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Saharjo, Bambang Hero, and Dimas Adi Nugraha. "Pengaruh Curah Hujan terhadap Penurunan Titik Panas (Hotspot) ti Indonesia pada Tahun 2019-2020." Journal of Tropical Silviculture 13, no. 03 (December 29, 2022): 184–90. http://dx.doi.org/10.29244/j-siltrop.13.03.184-190.
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Forest and land fires (Karhutla) are a phenomenon that often occurs in Indonesia every year. Moreover, there are many changes in land use, such as on the islands of Sumatra and Kalimantan. For example, in Jambi, South Sumatra, West Kalimantan and Central Kalimantan. Climatic factors can affect the occurrence of forest and land fires. The purpose of this study was to determine the relationship between hotspots and rainfall on the occurrence of forest and land fires in Indonesia 2019 to 2020. This study used NASA MODIS hotspot data, administrative maps, and rainfall data from the BMKG. The results of this study indicate that rainfall is very influential on the number of hotspots, if the rainfall is low then the hotspots is high and vice versa. July to November is the dry season in 2019, while 2020 is from August to October. From the results of the P-Value correlation test, only South Kalimantan Province is below the 0.05 limit, which is 0.041. Meanwhile, from the results of the R-Person correlation test, Jambi Province has a positive notation (+). Which means that rainfall has no effect on the number of hotspots in the two provinces.
Keywords: correlation, fire, hotspot, modis, precipitation
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Ramli, I., A. Achmad, A. Anhar, and A. Izzaty. "Landscape patterns changes and relation to water infiltration of Krueng Peusangan Watershed in Aceh." IOP Conference Series: Earth and Environmental Science 916, no. 1 (November 1, 2021): 012017. http://dx.doi.org/10.1088/1755-1315/916/1/012017.
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Abstract Watershed has played an important source of ecosystem services (ES). The Krueng Peusangan watershed (KPW) is considered to be the “lungs” and ecological border in the central region of Aceh, Indonesia. This study aims to monitor landscape patterns in the watershed area of 2009-2019 and to predict changes in 2039 and their relationship with infiltration. The selection of this research area is due to the notion that KPW is one of the numerously deforested watersheds in the country. Temporal spatial monitoring of landscape (land use/cover, LUC) patterns are required to inform policy and support future spatial management planning towards sustainability. Landscape patterns changes in KPW, including the extent of loss and addition of forest over the last few years, have not been quantified. In constructing the regional development policies, information regarding the effects of landscape changes and climatic patterns on ecosystem services is essential. Therefore, the knowledge development of this relationship is encouraged. The comparison value between potential and actual infiltration could identify the watershed category. The upstream area of KPW is classified as a significantly critical watershed due to LUC changes. Therefore, it is deemed necessary to improve the absorption zone for the continuation of groundwater protection.
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Hasanah, Rini Nur, Dicky Indratama, Hadi Suyono, Mahfudz Shidiq, and Mamdouh Abdel-Akher. "Performance of Genetic Algorithm-Support Vector Machine (GA-SVM) and Autoregressive Integrated Moving Average (ARIMA) in Electric Load Forecasting." Journal FORTEI-JEERI 1, no. 1 (May 22, 2020): 60–69. http://dx.doi.org/10.46962/forteijeeri.v1i1.8.
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The main business focus of an electric power service provider is to meet the consumers’ demand in time and quality as required. The increase of electric load demand is influenced by various factors, for example the development of technology, business, region, standard of life, climatic and weather changes, or even consumers behavior. They must be considered by the power service provider in order to anticipate the load increase beyond the company’s capability and the existing power generator capacity. This study focuses on comparing the performances of two methods in electric load demand forecasting. The Genetic Algorithm-Support Vector Machine (GA-SVM) and the Autoregressive Integrated Moving Average (ARIMA) methods are applied for the prediction of daily load in Malang city, Indonesia, which is under the service coverage of the Indonesian national electricity provider, PT PLN Sub Unit P3B Jawa Timur-Bali. Two specific influencing factors, temperature and precipitation, are considered. The performance comparison is based on the error parameters of Root Mean Square Error (RMSE) and Mean Absolute Percentage Error (MAPE). The results of study indicate that the use of GA-SVM method provides better performance than that of the ARIMA method.
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Mahrup, M. Ma’shum, MH Idris, and Fahrudin. "The future of Wallace region in Lombok: the pristine natural resource under climatic and anthropogenic threat." IOP Conference Series: Earth and Environmental Science 913, no. 1 (November 1, 2021): 012049. http://dx.doi.org/10.1088/1755-1315/913/1/012049.
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Abstract Wallace region is mostly comprised of the southeast archipelagoes of Indonesia, namely West and East Nusa Tenggara. Lombok is a west border of the Wallace line which biologically delineate the distinguished fauna and climate in the eastern Indonesia. However, the pristine natural resource is under climatic and anthropogenic threat. A case study by means of a Descriptive method was conducted to identify any contradictive use of natural resource leading to environmental degradation, as well as to study ruination impact of climate uncertainty. Long term satellite images of Lombok from 1980’s up to the latest date were traced to identify any changes in land cover, land use and settlement. Climate data were analyzed to find its trend and forecast its potential impact on the environment. Overall, the results showed that the pristine environments, namely forests, hillocks and cliffs, particularly in tourism destination sites had been accordingly overburdened by contradictive use of resources. Lack of law enforcements in environmental protection was a key point to be addressed as a major factor resulted in losses of the most valuable value of Lombok natural scene. In addition, manmade disaster is becoming more frequent with climate change commonly accused. In conclusion, the future of the natural resource in Lombok would not be merely relied on world class facilities of tourism industry, but on to what extend effort to naturally sustain the beauty of natural scene, stop degrading the lands and be responsible to protect environment in line with regional development.
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Pratiwi, S. D., Perdinan, I. Mustofa, S. C. Janna, REP Tjahjono, S. Aprilia, T. Herawati, and A. Anwar. "Economic losses analysis due to the impact of climate change on the health sector in Indonesia." IOP Conference Series: Earth and Environmental Science 950, no. 1 (January 1, 2022): 012061. http://dx.doi.org/10.1088/1755-1315/950/1/012061.
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Abstract Changes in environmental conditions due to climate change have the potential to change the pattern of disease spread and reduce the degree of human health. Health is a human right and a vital factor for human activity. Indirectly, health plays an important role in supporting economic activity and national development. This study aims to analyze the potential economic losses to the health sector due to climate change. The economic impact is calculated from losses through increasing the prevalence of climate sensitive diseases in the future, including dengue fever, malaria, diarrhea, and pneumonia. The distribution of diseases based on climatic factors is used to estimate the total prevalence. The number of disease prevalence was obtained by sensitivity analysis which was adjusted to the results of the RCP 4.5 CSIRO and MIROC models. The results showed that the impact of climate change on climate sensitive diseases has the potential to affect Indonesia’s Gross Domestic Product (GDP) by 0.1% or equivalent to Rp. 7.6 trillion. Climate change is projected to trigger disasters more frequently, thus increasing health losses by up to 1.8% of Indonesia’s national GDP. Strengthening climate change adaptation action in the health sector needs more attention to reduce these losses
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Daruati, Dini, Unggul Handoko, Meti Yulianti, Iwan Ridwansyah, Aldiano Rahmadya, and Dewi Verawati. "Study on the Opportunities Related to Coastal Vulnerability in Indonesia Using Bibliometric Analysis." International Journal of Environmental Science and Development 13, no. 5 (2022): 184–88. http://dx.doi.org/10.18178/ijesd.2022.13.5.1391.
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Coastal areas have very important roles and benefits. Unfortunately, most of them in the world are experiencing the effects of climatic changes such as rising sea levels, increasing coastal erosion, and marine intrusion. Meanwhile, there have been many studies on coastal vulnerability from various aspects and perspectives. Therefore, it is necessary to study the trend on coastal vulnerability from past historical records of several decades ago and also from the aspects that have not been studied. This study aims to identify gaps and opportunities related to coastal vulnerability to provide solutions to sustainability themes in the future. Also, there is a need for this study since it is not monotonous and contains a novel element. The method used in this review article is Web of Science (WoS) as the database source, while VOSviewer is used to visualize and analyze the Bibliometric maps. WoS is a website that provides subscription-based access to multiple databases that provide comprehensive citation data for many different academic disciplines, while VOSviewer is a software tool for constructing and visualizing bibliometric networks. The analysis shows that for over 20 years, topics related to coastal vulnerability around the world are divided into four categories, each of which shows the most frequently occurring themes, namely climate change, coastal vulnerability, sea level, and vulnerability. Subsequently, there is a gap in coastal vulnerability, which is a topic on climate change that has been rarely studied in Indonesia since 2015. This bibliometric approach is used to identify key themes in each study or scope of knowledge that has been conducted so far, which is beneficialin determining novel future research.
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Kantamaneni, Komali, David Christie, Charlotte E. Lyddon, Peng Huang, Muhammad Nizar, Karuppusamy Balasubramani, Venkatesh Ravichandran, et al. "A Comprehensive Assessment of Climate Change and Coastal Inundation through Satellite-Derived Datasets: A Case Study of Sabang Island, Indonesia." Remote Sensing 14, no. 12 (June 15, 2022): 2857. http://dx.doi.org/10.3390/rs14122857.
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Climate-change-induced hazards are negatively affecting the small islands across Indonesia. Sabang Island is one of the most vulnerable small islands due to the rising sea levels and increasing coastal inundation which threaten the low-lying coastal areas with and without coastal defences. However, there is still a lack of studies concerning the long-term trends in climatic variables and, consequently, sea level changes in the region. Accordingly, the current study attempts to comprehensively assess sea level changes and coastal inundation through satellite-derived datasets and model-based products around Sabang Island, Indonesia. The findings of the study show that the temperature (both minimum and maximum) and rainfall of the island are increasing by ~0.01 °C and ~11.5 mm per year, respectively. The trends of temperature and rainfall are closely associated with vegetative growth; an upward trend in the dense forest is noticed through the enhanced vegetation index (EVI). The trend analysis of satellite altimeter datasets shows that the sea level is increasing at a rate of 6.6 mm/year. The DEM-based modelling shows that sea level rise poses the greatest threat to coastal habitations and has significantly increased in recent years, accentuated by urbanisation. The GIS-based model results predict that about half of the coastal settlements (2.5 sq km) will be submerged completely within the next 30 years, provided the same sea level rise continues. The risk of coastal inundation is particularly severe in Sabang, the largest town on the island. The results allow regional, sub-regional, and local comparisons that can assess variations in climate change, sea level rise, coastal inundation, and associated vulnerabilities.
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Saputra, Muhammad Hadi, and Han Soo Lee. "Evaluation of Climate Change Impacts on the Potential Distribution of Styrax sumatrana in North Sumatra, Indonesia." Sustainability 13, no. 2 (January 6, 2021): 462. http://dx.doi.org/10.3390/su13020462.
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This study aims to assess the impact of climate change on the distribution of Styrax sumatrana in North Sumatra by applying the maximum entropy (MaxEnt) model with biophysical factors (elevation, slope, aspect, and soil), climatic factors (19 bioclimate data sets for 2050 and 2070), and anthropogenic factors (land use land cover (LULC) changes in 2050 and 2070). The future climate data retrieved and used are the output of four climate models from Coupled Model Intercomparison Project Phase 5 (CMIP5), namely, the CCSM4, CNRM-CM5, MIROC5, and MRI-CGCM3 models, under the Representative Concentration Pathways (RCPs) 4.5 and 8.5 scenarios. The MaxEnt modelling results showed the importance of the mean temperature of the coldest quarter and the LULC variables. Styrax sumatrana rely on environmental conditions with air temperatures ranging from 13 to 19 °C. The potentially suitable land types for Styrax sumatrana are shrubs, gardens, and forests. The future predictions show that the suitable habitat for Styrax sumatrana is predicted to decrease to 3.87% in 2050 and to 3.54% in 2070 under the RCP4.5 scenario. Under the RCP8.5 scenario, the suitable area is predicted to decrease to 3.04% in 2050 and to 1.36% in 2070, respectively. The degradation of the suitable area is mainly due to increasing temperature and deforestation in future predictions. The modelling results illustrate that the suitable habitats of Styrax sumatrana are likely to be reduced under future climate change scenarios or lost in 2070 under the RCP8.5 scenario. The potential future extinction of this species should alert authorities to formulate conservation strategies. Results also demonstrated key variables that should be used for formulating ex situ conservation strategies.
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Putri Purnama, Olivia, Hadi Kardhana, Harry Indrawan, Rasgianti, M. Cahyono, and Dan Anna Nurganah Chaidar. "Analysis of climate change and future projection of rainfall, temperature, and potential evapotranspiration in Riam Kanan catchment area, Banjar Regency, South Kalimantan." MATEC Web of Conferences 270 (2019): 04005. http://dx.doi.org/10.1051/matecconf/201927004005.
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Climatic conditions in Indonesia warm up indicated by the increasing of the average annual temperature by 0.3°C. This may cause higher water evaporation and increased rainfall intensity. Changes in rainfall patterns shift the start of the rainy season to be slower and end faster. These changes the dry season to become longer with shorter time intervals. In case of dam operation, dam manager needs to adapt the effects of climate change. This paper presents trend and future projection in Riam Kanan Catchment Area, Banjar Regency, South Kalimantan. Climate change historical trend analysis was carried out with the observation data used were rainfall and maximum temperature from BMKG climatology station, Banjarbaru Station, in the period 1983 - 2017. Future projection analysis was carried out by using RCP2.6 and RCP8.5 scenario data for projecting rainfall and temperature in the period 2018 - 2100. The result shows that the rainfall, maximum temperature, and evapotranspiration trends in Banjarbaru from 1983 - 2017 were not too significant by +0.1 mm, -0.5°C, and +0.1 mm. While the projection of RCP2.6 and RCP8.5 scenario shows increase by +0.1 mm, +0.1°C, +0.1 mm and by +0.1 mm, +3.3°C, and +0.1 mm. Keywords: Climate Change, Trend, Rainfall, Temperature, Evapotranspiration, RCP 2.6, RCP8.5.
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Ismana, Defri Ramadhan, Seta Baehera, Anwar Fitrianto, Bagus Sartono, and Sachnaz Desta Oktarina. "Penggerombolan Desa di Jawa Barat Berdasarkan Daerah Rawan Bencana." Jurnal Statistika dan Aplikasinya 6, no. 2 (December 31, 2022): 243–52. http://dx.doi.org/10.21009/jsa.06210.
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Indonesia is one of the countries that has a large potential for natural disasters. Indonesia's position at the confluence of 4 continental plates makes the potential for earthquakes even greater. The tropical climate with 2 seasons makes changes in weather, temperature and wind direction quite extreme. These climatic conditions combined with the relatively diverse surface and rock topography conditions, these conditions can cause several bad consequences for the community such as hydrometeorological disasters such as floods, landslides, forest fires, and droughts. Particularly in West Java province, natural disasters that have occurred include: landslides, droughts, cyclones/typhoons, tidal waves, fires, volcanic eruptions, tsunamis, and other disasters. The purpose of this study was to cluster villages in the West Java region based on the level of disaster-prone in 2018. The research was carried out using K-Prototypes clustering and testing evaluation using the silhouette coefficient. The results showed that the optimal number of clusters in this study was nine clusters. These clusters can be distinguished based on the disaster category and the characteristics of the area.
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Ikhsani, I. Y., B. Kumayanjati, E. N. Dida, and S. Y. Cahyarini. "Flame Atomic Adsorption Spectrophotometer (FAAS) to Assess the Concentration of Heavy Metals (Pb, Cd, Cr, and Zn) in Porites Coral from Ambon Bay, Indonesia." Journal of Physics: Conference Series 2377, no. 1 (November 1, 2022): 012039. http://dx.doi.org/10.1088/1742-6596/2377/1/012039.
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The concentration of metals in coral represents environmental changes, monsoonal variation, and human disturbance. Metals in coral were used as a proxy to evaluate the response of coastal areas to climatic and human stresses. In this study, several metals including lead (Pb), cadmium (Cd), chromium (Cr) and zinc (Zn) in Porites coral taken from Ambon Bay, Ambon Island, Indonesia, were investigated. The history of metals transient in the most populated island in Maluku Province is documented here from measurements of metals concentration from monthly-banded coral that grew in coastal seawater from 2001 to 2009. The concentration of heavy metals in coral samples was measured using Flame Atomic Adsorption Spectrophotometry (FAAS) method. The results showed metals bioaccumulation (average ± STD) were following decreasing order: Pb (0.96 ± 1.58 μg/g) > Cr (0.15 ± 0.34 μg/g)> Zn (0.11 ± 0.26 μg/g) > Cd (0.007 ± 0.016 μg/g). Moreover, all metals content in the coral showed a remarkable rose from 2001 to 2009 and showed relatively high concentrations during the southeast monsoon for Pb and Cd. Based on the statistical analysis, all metals in Ambon Bay coral were impacted by terrestrial input. In addition, Pb and Cd were also impacted by natural processes that may be associated with their biogeochemical cycle and monsoonal variation.
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KURNIAWAN, ISMA DWI, CAHYO RAHMADI, REZZY EKO CARAKA, and TIARA E. ARDI. "Short Communication: Cave-dwelling Arthropod community of Semedi Show Cave in Gunungsewu Karst Area, Pacitan, East Java, Indonesia." Biodiversitas Journal of Biological Diversity 19, no. 3 (May 1, 2018): 857–66. http://dx.doi.org/10.13057/biodiv/d190314.
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Kurniawan ID, Rahmadi C, Caraka RE, Ardi TE. 2018. Short Communication: Cave-dwelling Arthropod community of Semedi Show Cave in Gunungsewu Karst Area, Pacitan, East Java, Indonesia. Biodiversitas 19: 857-866. Arthropods are a major group of animals which have significant roles in maintaining cave ecosystem stability. Semedi is a new show cave, but information about arthropods in this cave was not available. The use of cave as a tourist attraction will bring environmental changes which potentially disturb cave-dwelling arthropod community. This study aimed to measure arthropod diversity and their relation to abiotic factors in Semedi Show Cave. Arthropods were sampled by hand collecting, a combination of pitfall and bait traps, and Berlese extractor. Abiotic factors measured were climatic and edaphic parameters. Sampling was conducted in the 3 zones of Semedi cave (Entrance, Twilight, and Dark). Data were analyzed by calculation of richness (Margalef), diversity and evenness (Shannon-Wiener) indices, cluster and correlation analyses. A total 1095 individuals of arthropods consisting of 102 morphospecies, belonging to 6 Classes, and 19 Orders were sampled during this study. The entrance zone had higher richness and diversity indices (richness=12.80, diversity=3.40) than the twilight zone (richness=7.85, diversity=3.25) and the dark zone (richness=5.35, diversity=2.63). Meanwhile, the twilight zone had higher evenness index (0.85) than the entrance zone (0.77) and the dark zone (0.77). Each zone of Semedi cave had different abiotic conditions. Abiotic conditions and Arthropod communities in the twilight and dark zones were more similar to each other than to those of the entrance zone. The statistical analyses showed that there were significant correlations between abiotic factors and arthropod communities. Semedi had various cave-dwelling arthropods. Sustainable management of show cave should be applied to minimize the destructive impact of tourism activities on the cave arthropod community.
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Damanik, Adrianus, Khoiril Anwar Maryunani, Septriono Hari Nugroho, and Purna Sulastya Putra. "Climate variability since last glacial maximum based on distribution of foraminifera in North Papua Waters, Pacific Ocean." Marine Research in Indonesia 45, no. 2 (December 31, 2020): 59–66. http://dx.doi.org/10.14203/mri.v45i2.572.
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Foraminifera distribution is one of the proxies used to reconstruct climatic conditions and paleoceanography. Specific species or groups of foraminifera can be associated with certain oceanographic parameters. As one of the entrances of Indonesia Through Flow (ITF), North Papua Waters has the role of channeling water masses from the Pacific Ocean to the Indonesian Waters. It is also influenced by global thermohaline circulation and ENSO. In this study, observations were made of changes in the distribution of foraminifera to reconstruct paleoclimate and paleoceanographic conditions in the North Papua Waters and their relation to global climate conditions. The analysis was performed on 246 cm core sediments with eight cm foraminifera observation intervals at sample depths 246-126 cm and four cm at sample depths of 126-0 cm. Pulleniatina spp., Neogloboquadrina spp., and Globorotalia spp., are used for radiocarbon dating. Planktonic abundant species of foraminifera are Pulleniatina obliqueloculata, Neogloboquadrina dutertrei, Globorotalia menardii, Globigerinoides ruber, Globigerinoides trilobus, and the benthonic are Melonis pompilideus, Pullenia bulloides, Oolina sp., Planulina bradyii, Oridorsalis umbonatus, Cibicides subhaidingerii, Eggrela bradyii, Planulina wuelestroffi, and Quinqueloculina spp.,. Division according to cluster analysis can show the difference between Holocene and Pleistocene, which is then more detailed divided into 17 clusters. Based on biozonation there are some events that can be observed: climate variability since Late Pleistocene, record Pleistocene-Holocene boundary based on the significant variability of foraminifera distribution, and records some of the global climate events such as Last Glacial Maximum (~19-17 kyr), Younger Dryas (~11-9 kyr), and 8,2K event.
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Russell, James M., Satria Bijaksana, Hendrik Vogel, Martin Melles, Jens Kallmeyer, Daniel Ariztegui, Sean Crowe, et al. "The Towuti Drilling Project: paleoenvironments, biological evolution, and geomicrobiology of a tropical Pacific lake." Scientific Drilling 21 (July 27, 2016): 29–40. http://dx.doi.org/10.5194/sd-21-29-2016.
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Abstract. The Towuti Drilling Project (TDP) is an international research program, whose goal is to understand long-term environmental and climatic change in the tropical western Pacific, the impacts of geological and environmental changes on the biological evolution of aquatic taxa, and the geomicrobiology and biogeochemistry of metal-rich, ultramafic-hosted lake sediments through the scientific drilling of Lake Towuti, southern Sulawesi, Indonesia. Lake Towuti is a large tectonic lake at the downstream end of the Malili lake system, a chain of five highly biodiverse lakes that are among the oldest lakes in Southeast Asia. In 2015 we carried out a scientific drilling program on Lake Towuti using the International Continental Scientific Drilling Program (ICDP) Deep Lakes Drilling System (DLDS). We recovered a total of ∼ 1018 m of core from 11 drilling sites with water depths ranging from 156 to 200 m. Recovery averaged 91.7 %, and the maximum drilling depth was 175 m below the lake floor, penetrating the entire sedimentary infill of the basin. Initial data from core and borehole logging indicate that these cores record the evolution of a highly dynamic tectonic and limnological system, with clear indications of orbital-scale climate variability during the mid- to late Pleistocene.
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Hakim, Dani Lukman, and Dedi Herdiansah. "Food Security Production Challenges in Indonesia as Impact of Global Climate Change." International Journal of Environmental and Agriculture Research 3, no. 8 (July 31, 2017): 26–33. http://dx.doi.org/10.25125/agriculture-journal-ijoear-jul-2017-2.
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Keqin, Sun, and Shaila Chandra. "Evolution and Ecology of the Cathaysia flora." Journal of Palaeosciences 47 (December 31, 1998): 20–28. http://dx.doi.org/10.54991/jop.1998.1269.
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The Cathaysia flora, one of four famous floras of Late Carboniferous and Permian periods in the world, is mainly distributed in Asia, such as China, Korea, Japan, Laos, Thailand, Indonesia, Malaysia, etc. China is one of the most important countries for the Cathaysia flora, which derived from the identical Lepidodendropsis flora of the Early Carboniferous on a global scale. From the beginning of the Namurian A, the Cathaysia flora gradually separated from the global Lepidodendropsis flora and it could be recognized as an independent flora in the early Late Carboniferous (Namurian B to C). According to the succession of the Cathaysia flora of different geological ages, the flora may be divided into seven fossil-plant assemblages from early Late Carboniferous to late Late Permian so as to reflect the characteristics of floral evolutionary stages. From the early Late Carboniferous to the early Late Permian, the typical elements of the Cathaysia flora gradually increased. The Cathaysia flora ranged from the beginning of the early Late Carboniferous to the end of the Permian in age. The most obvious changes of dry climate and tectonic movement caused the extinction of the Cathaysia flora by the end of the Late Permian. The Cathaysian floral province, located in the equatorial region under tropical climatic condition during the Carboniferous and Permian, was characterized by lycopods, ferns, pteridosperms, sphenopsids and cordaitean gymnosperms. The vertical structure of floral communities included arbores, tree ferns, shrubs and herbs.
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Thompson, Lonnie G., Ellen Mosley-Thompson, Mary E. Davis, and Henry H. Brecher. "Tropical glaciers, recorders and indicators of climate change, are disappearing globally." Annals of Glaciology 52, no. 59 (2011): 23–34. http://dx.doi.org/10.3189/172756411799096231.
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AbstractIn this paper we review the interaction of El Niño Southern Oscillation (ENSO) variability and warming trends recorded in ice-core records from high-altitude tropical glaciers, discuss the implications of the warming trends for the glaciers and consider the societal implications of glacier retreat. ENSO has strong impacts on meteorological phenomena that directly or indirectly affect most regions on the planet and their populations. Many tropical ice fields have provided continuous annually resolved proxy records of climatic and environmental variability preserved in measurable parameters, especially oxygen and hydrogen isotopic ratios (δ18O, δD) and the net mass balance (accumulation). These records present an opportunity to examine the nature of tropical climate variability in greater detail and to extract new information on linkages between rising temperatures on tropical glaciers and equatorial Pacific sea surface temperatures in critical ENSO indicator regions. The long-term climate records from a collection of high-altitude tropical ice cores provide the longer-term context essential for assessing the significance of the magnitude and rate of current climate changes that are in large measure driving glacier retreat. The well-documented ice loss on Quelccaya in the Peruvian Andes, Naimona’nyi in the Himalaya, Kilimanjaro in eastern Africa and the ice fields near Puncak Jaya in Papua, Indonesia, presents a grim future for low-latitude glaciers. The ongoing melting of these ice fields (response) is consistent with model predictions for a vertical amplification of temperature in the tropics (driver) and has serious implications for the people who live in these areas.
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Runtunuwu, Eleonora, and Akihiko Kondoh. "ASSESSING GLOBAL CLIMATE VARIABILITY UNDER COLDEST AND WARMEST PERIODS AT DIFFERENT LATITUDINAL REGIONS." Indonesian Journal of Agricultural Science 9, no. 1 (October 25, 2016): 7. http://dx.doi.org/10.21082/ijas.v9n1.2008.7-18.
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Effect of climate change on water balance will play a key role in the biosphere system. To study the global climate change impact on water balance during 95-year period (1901-1995), long-term grid climatic data including global mean monthly temperature and precipitation at 0.5 x 0.5 degree resolution were analysed. The trend and variation of climate change, the time series of monthly air temperature and precipitation data were aggregated into annual arithmetic means for two extreme periods (1901-1920 and 1990-1995). The potential evapotranspiration (Eo) was calculated using Thornthwaite method.<br />The changes in mean annual value were obtained by subtracting the maximum period data from 1990 to 1995 (Max) with the minimum period data from 1901 to 1920 (Min). The results revealed that over 95-year period, mean global air temperature increased by 0.57oC. The temperature increase varied greatly in Asia, with more than 3.0oC, especially at 45-70oN, as well over the northern part of America (60-65oN) and Europe (55- 75oN). In low latitude across Asia, Africa, and South America, the variation was less than 1.5oC. In 80-85ºN region, the variation was relatively small and at higher latitudes it increased<br />significantly. Precipitation varied temporally and spatially. In the 40-45ºN and 40-45ºS regions, increasing precipitation of more than 100 mm occurred during the June-August and<br />September-November, especially in the northern hemisphere. The Eo increase of 2000 mm during 95 years occurred in the tropical northern America, middle Africa, and South-East Asia. A grid in Central Java of Indonesia showed that the Eo increase of 2500 mm during 95 years resulted in the decrease of growing period by 100 days. In coping with climate change, adjustment of cropping calendar is imperative.
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Runtunuwu, Eleonora, and Akihiko Kondoh. "ASSESSING GLOBAL CLIMATE VARIABILITY UNDER COLDEST AND WARMEST PERIODS AT DIFFERENT LATITUDINAL REGIONS." Indonesian Journal of Agricultural Science 9, no. 1 (October 25, 2016): 7. http://dx.doi.org/10.21082/ijas.v9n1.2008.p7-18.
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Effect of climate change on water balance will play a key role in the biosphere system. To study the global climate change impact on water balance during 95-year period (1901-1995), long-term grid climatic data including global mean monthly temperature and precipitation at 0.5 x 0.5 degree resolution were analysed. The trend and variation of climate change, the time series of monthly air temperature and precipitation data were aggregated into annual arithmetic means for two extreme periods (1901-1920 and 1990-1995). The potential evapotranspiration (Eo) was calculated using Thornthwaite method.<br />The changes in mean annual value were obtained by subtracting the maximum period data from 1990 to 1995 (Max) with the minimum period data from 1901 to 1920 (Min). The results revealed that over 95-year period, mean global air temperature increased by 0.57oC. The temperature increase varied greatly in Asia, with more than 3.0oC, especially at 45-70oN, as well over the northern part of America (60-65oN) and Europe (55- 75oN). In low latitude across Asia, Africa, and South America, the variation was less than 1.5oC. In 80-85ºN region, the variation was relatively small and at higher latitudes it increased<br />significantly. Precipitation varied temporally and spatially. In the 40-45ºN and 40-45ºS regions, increasing precipitation of more than 100 mm occurred during the June-August and<br />September-November, especially in the northern hemisphere. The Eo increase of 2000 mm during 95 years occurred in the tropical northern America, middle Africa, and South-East Asia. A grid in Central Java of Indonesia showed that the Eo increase of 2500 mm during 95 years resulted in the decrease of growing period by 100 days. In coping with climate change, adjustment of cropping calendar is imperative.
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Wiratri, Mustika, Baddarudin Baddarudin, Diannor Mahyudin, Emmy Sri Mahreda, and Supari Supari. "PROYEKSI PERGESERAN TIPE IKLIM OLDEMAN DI WILAYAH KALIMANTAN SELATAN PADA AKHIR ABAD 21 BERDASARKAN SIMULASI CORDEX-SEA." EnviroScienteae 18, no. 2 (August 25, 2022): 87. http://dx.doi.org/10.20527/es.v18i2.14246.
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Climate change has the potential to alter the spatial pattern of rainfall, which is the primary variable in climate classification. The Oldeman method is one of climate classification techniques focused on agricultural management. This study's objective is to evaluate the spatial changes of the Oldeman climatic type in South Kalimantan, Indonesia assificationt of climate change. The climate in the late 21st century is simulated using data from one of the CORDEX-SEA project's products using the RCP4.5 and RCP8.5 scenarios. The shift in climate type was assesed based on the difference of the total area covered by the Oldeman climate classification during the projection period (2071-2095) and that covered during the reference period (1981-2005). The simulation data was corrected first using the linear scaling method to reduce the bias. The skill of model in reproducing Oldeman climate type was evaluated against the surface observation data from 35 sites using the percent of correct (PoC) score method. We found that the bias correction procedure successfully reduced the bias, as evidenced by a 22% rise in the correlation value of monthly rainfall and a -79% reduction in RMSE. By the end of the 21st century, both under RCP4.5 and RCP8.5 scenarios, the South Kalimantan climate is projected to be dryer, characterized by a decrease in the area covered by wet climate types (type B) and an increase in the area covered by dry and extremely dry climate types (type D and E). We discovered that the RCP8.5 scenario could result in a more tremendous shift in climate type than the RCP4.5 scenario. This study demonstrates that climate change has the potential to result in a shift in the climate classification that must be considered in agriculture policymaking.
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Sarvina, Y., T. June, S. H. Sutjahjo, R. Nurmalina, and E. Surmaini. "Climatic Suitability for Robusta Coffee in West Lampung Under Climate Change." IOP Conference Series: Earth and Environmental Science 950, no. 1 (January 1, 2022): 012019. http://dx.doi.org/10.1088/1755-1315/950/1/012019.
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Abstract West Lampung has long been recorded as one of the Indonesian major Robusta coffee producers. Coffee is an annual crop sensitive to climatic conditions. Therefore, climate change have been reported to affect yield and area suitable for coffee production. Assessing climate suitability coffee area in West Lampung is crucial for a sustainability of coffee production system. This study aims to identify changes in coffee crop suitability under climate change. Coffee production data from the local agriculture office and climate data from Wordclim were processed using Maximum Entropy (MaxEnt) and ArcGIS to project the impact of climate change on distribution change of coffee suitability. The Result of MaxEnt indicates an important shift in climatic suitability of coffee area in the future. Suitable grown areas decrease. This shift requires an adaptation strategy for sustainable coffee production system in West Lampung.
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van Noordwijk, Meine, Lisa Tanika, and Betha Lusiana. "Flood risk reduction and flow buffering as ecosystem services – Part 2: Land use and rainfall intensity effects in Southeast Asia." Hydrology and Earth System Sciences 21, no. 5 (May 5, 2017): 2341–60. http://dx.doi.org/10.5194/hess-21-2341-2017.
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Abstract. Watersheds buffer the temporal pattern of river flow relative to the temporal pattern of rainfall. This ecosystem service is inherent to geology and climate, but buffering also responds to human use and misuse of the landscape. Buffering can be part of management feedback loops if salient, credible and legitimate indicators are used. The flow persistence parameter Fp in a parsimonious recursive model of river flow (Part 1, van Noordwijk et al., 2017) couples the transmission of extreme rainfall events (1 − Fp), to the annual base-flow fraction of a watershed (Fp). Here we compare Fp estimates from four meso-scale watersheds in Indonesia (Cidanau, Way Besai and Bialo) and Thailand (Mae Chaem), with varying climate, geology and land cover history, at a decadal timescale. The likely response in each of these four to variation in rainfall properties (including the maximum hourly rainfall intensity) and land cover (comparing scenarios with either more or less forest and tree cover than the current situation) was explored through a basic daily water-balance model, GenRiver. This model was calibrated for each site on existing data, before being used for alternative land cover and rainfall parameter settings. In both data and model runs, the wet-season (3-monthly) Fp values were consistently lower than dry-season values for all four sites. Across the four catchments Fp values decreased with increasing annual rainfall, but specific aspects of watersheds, such as the riparian swamp (peat soils) in Cidanau reduced effects of land use change in the upper watershed. Increasing the mean rainfall intensity (at constant monthly totals for rainfall) around the values considered typical for each landscape was predicted to cause a decrease in Fp values by between 0.047 (Bialo) and 0.261 (Mae Chaem). Sensitivity of Fp to changes in land use change plus changes in rainfall intensity depends on other characteristics of the watersheds, and generalisations made on the basis of one or two case studies may not hold, even within the same climatic zone. A wet-season Fp value above 0.7 was achievable in forest–agroforestry mosaic case studies. Inter-annual variability in Fp is large relative to effects of land cover change. Multiple (5–10) years of paired-plot data would generally be needed to reject no-change null hypotheses on the effects of land use change (degradation and restoration). Fp trends over time serve as a holistic scale-dependent performance indicator of degrading/recovering watershed health and can be tested for acceptability and acceptance in a wider social-ecological context.
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Susilokarti, Dyah, Sigit Supadmo Arif, Sahid Susanto, and Lilik Sutiarso. "IDENTIFIKASI PERUBAHAN IKLIM BERDASARKAN DATA CURAH HUJAN DI WILAYAH SELATAN JATILUHUR KABUPATEN SUBANG, JAWA BARAT (Identification of Climate Change Based on Rainfall Data in Southern Part of Jatiluhur, Subang District, West Jawa)." Jurnal Agritech 35, no. 01 (May 4, 2015): 98. http://dx.doi.org/10.22146/agritech.13038.
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Indonesian region is strongly influenced by the monsoon climatic conditions have obvious difference between wetseason and dry season. Climate variability and extreme climate phenomenon that often happens lately caused climatechange. Climate change is characterized by changes in rainfall patterns and its causes shifting early in the season thatmake it difficult to plan cultivation. It is therefore necessary to study the behavior of the climate through rainfall timeseries analysis. Statistical tests performed using the F test and t test. This study aims to identify climate change throughpattern trends, distribution and similarity of rainfall data at different timescales, using rainfall data rainy season (Octoberto March) and the dry season (April to September) year period from 1975 to 2012. Data obtained from 6 (six) graduatedrainfall stations around the study site those are Kalijati, Curugagung, Cinangling, Dangdeur, Subang and Pegaden. Dataare grouped in 10-year period with a 4-year timing differences in accordance with the rules of the moving average. Theperiod 1975 -1984 was indicated as an initial period as a basis to look for changes in rainfall patterns that occur. F testshows there has been a change in the distribution of rainfall in every period than normal period. T test showed there hasbeen a change in the pattern of rainfall in the dry season period from 1987 to 1996. While the rainy season is startingto look at the period from 1995 to 2004. Rainy season and the dry season period (1995-2004) shows a similar patternwith the normal period (1975 -1984) so that it is possible in a certain period of climate change on the location of thecycle is approaching normal conditions.Keywords: Time seriesanalysis,precipitation, climatechange, Subangdistrict ABSTRAKWilayah Indonesia sangat dipengaruhi oleh kondisi iklim monsun yang mempunyai perbedaan yang jelas antaramusim basah dan musim kering.Variabilitas iklim dan adanya fenomena iklim ekstrim yang sering terjadi akhir akhirini menyebabkan terjadinya perubahan iklim. Perubahan iklim ditandai adanya perubahan pola curah hujan yangmenyebabkan terjadinya pergeseran awal musim tanam sehingga sulit membuat perencanaan budidaya tanaman. Olehkarena itu perlu dilakukan kajian prilaku iklim melalui analisis deret waktu curah hujan.Uji statistik dilakukan denganmenggunakan uji F dan uji t. Penelitian ini bertujuan untuk mengidentifikasi terjadinya perubahan iklim melalui polakecenderungan, distribusi dan kesamaan data curah hujan pada rentang waktu yang berbeda, menggunakan data curahhujan musim hujan (Oktober – Maret) dan musim kemarau (April – September) periode tahun 1975 – 2012. Datadiperoleh dari 6 stasiun penakar curah hujan di sekitar lokasi penelitian yaitu stasiun Kalijati, Curug agung, Cinangling,Dangdeur, Subang dan Pegaden. Data dikelompokkan dalam periode 10 tahunan dengan beda waktu 4 tahun sesuaidengan aturanmovingaverage. Periode tahun 1975 -1984 menjadi periode awal sebagai dasar untuk melihat perubahanpola curah hujan yang terjadi. Uji F menunjukkan telah terjadi perubahan distribusi curah hujan disetiap periodedibanding periode normalnya. Uji t menunjukkan telah terjadi perubahan pola curah hujan musim kemarau sejakperiode tahun 1987 – 1996. Sedangkan musim hujan mulai terlihat pada periode tahun 1995 – 2004. Musim hujandan musim kemarau periode (1995-2004) menunjukkan pola yang sama dengan periode normal (1975-1984) sehinggadimungkinkan pada periode tertentu siklus perubahan iklim pada lokasi ini mendekati kondisi normal.Kata kunci: Analisis deret waktu, curah hujan, perubahan iklim, kabupaten Subang
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Srivastava, R., and Norico Kagemori. "Fossil wood of Dryobalanops from Pliocene deposits of Indonesia." Journal of Palaeosciences 50, no. (1-3) (December 31, 2001): 395–401. http://dx.doi.org/10.54991/jop.2001.1835.
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The present paper gives a detailed account of anatomical features of petrified wood showing affinities with the modern genus Dryobalanops Gaertn.f. of the family Dipterocarpaceae. The fossil wood was found as a big tree trunk in volcanic sediments near Bogor, West Java (Indonesia). The distribution of extant Dryobalanops is restricted to tropical evergreen rain forests of Malaysia and Indonesia (Sumatra & Borneo). Today it is absent in the natural forests of Java, although the broad climatic setting has not changed much since Pliocene times. Reasons for its absence in the island are discussed.
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Falk, Ulrike, Andreas Ibrom, Alexander Oltchev, Heinrich Kreilein, Tania June, Abdul Rauf, Johannes Merklein, and Gode Gravenhorst. "Energy and water fluxes above a cacao agroforestry system in Central Sulawesi, Indonesia, indicate effects of land-use change on local climate." Meteorologische Zeitschrift 14, no. 2 (May 10, 2005): 219–25. http://dx.doi.org/10.1127/0941-2948/2005/0025.
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Mahagangga, G. A. O., I. P. Anom, I. B. Suryawan, I. M. Kusuma Negara, I. G. A. A. Wulandari, and I. M. B. Ariwangsa. "Tourism evolution and climate changed in Badung Regency, Bali, Indonesia." IOP Conference Series: Earth and Environmental Science 724, no. 1 (April 1, 2021): 012093. http://dx.doi.org/10.1088/1755-1315/724/1/012093.
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ABIDOYE, BABATUNDE O., PRADEEP KURUKULASURIYA, and ROBERT MENDELSOHN. "SOUTH-EAST ASIAN FARMER PERCEPTIONS OF CLIMATE CHANGE." Climate Change Economics 08, no. 03 (August 2017): 1740006. http://dx.doi.org/10.1142/s2010007817400061.
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A survey of farmers in Bangladesh, Indonesia, Sri Lanka, Thailand, and Vietnam reveals that farmers are keenly aware of even slight changes in their climate. Over 90% of the farmers interviewed perceived small changes in temperature or precipitation patterns where they lived. Over half claimed to have changed their irrigation, timing, or crop choices because of climate change. Although the link between perceived changes and stated adaptations is weak, farmers are aware of the types of changes they need to make in response to climate change in South-East Asia. Adaptation responses must be firmly grounded in not only local conditions, but also the views of participants at the front lines of climate change impacts. The knowledge base of farmers grappling with the challenges of climate change must be taken into account when policy responses to support adaptation are formulated.
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Atkinson, Christopher, and Haris Alibašić. "Prospects for Governance and Climate Change Resilience in Peatland Management in Indonesia." Sustainability 15, no. 3 (January 18, 2023): 1839. http://dx.doi.org/10.3390/su15031839.
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Southeast Asia has the most significant tropical peat/peat carbon storage area in the world, with Indonesia being the primary location for much of it. Anthropogenic changes to peatlands have resulted in a threat to these endangered ecosystems; policies that have favored industrial and elite interests above those of local communities have resulted in severe consequences for the environment and public health, not only in Indonesia and its region, but for the world community in terms of contributions to climate change. Decentralization has been seen as a means of sharing authority and accountability with lower government levels and providing additional opportunities for shared governance. Still, there is reason to question the means of these approaches and the results of such efforts. The research question is: What can be learned about the administration’s role in leading stakeholder involvement from the case of Indonesian peatland management? The authors utilize outcome additionality as a framework connected to the resilience of peatlands.
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Brázdil, Rudolf, Ladislava Řezníčková, Hubert Valášek, Lukáš Dolák, and Oldřich Kotyza. "Climatic effects and impacts of the 1815 eruption of Mount Tambora in the Czech Lands." Climate of the Past 12, no. 6 (June 22, 2016): 1361–74. http://dx.doi.org/10.5194/cp-12-1361-2016.
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Abstract. The eruption of Mount Tambora in Indonesia in 1815 was one of the most powerful of its kind in recorded history. This contribution addresses climatic responses to it, the post-eruption weather, and its impacts on human life in the Czech Lands. The climatic effects are evaluated in terms of air temperature and precipitation on the basis of long-term homogenised series from the Prague-Klementinum and Brno meteorological stations, and mean Czech series in the short term (1810–1820) and long term (1800–2010). This analysis is complemented by other climatic and environmental data derived from rich documentary evidence. Czech documentary sources make no direct mention of the Tambora eruption, neither do they relate any particular weather phenomena to it, but they record an extremely wet summer for 1815 and an extremely cold summer for 1816 (the "Year Without a Summer") that contributed to bad grain harvests and widespread grain price increases in 1817. Possible reasons for the cold summers in the first decade of the 19th century reflected in the contemporary press included comets, sunspot activity, long-term cooling and finally – as late as 1817 – earthquakes with volcanic eruptions.
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Sidik, Frida, Bambang Supriyanto, Haruni Krisnawati, and Muhammad Z. Muttaqin. "Mangrove conservation for climate change mitigation in Indonesia." Wiley Interdisciplinary Reviews: Climate Change 9, no. 5 (May 30, 2018): e529. http://dx.doi.org/10.1002/wcc.529.
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Pradono, Budi. "The Interiority of Proximity Between Nature and Architecture in Contemporary and Tropically Context with Cases Studies." ARTEKS : Jurnal Teknik Arsitektur 3, no. 2 (June 1, 2019): 129–44. http://dx.doi.org/10.30822/arteks.v3i2.63.
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The interiority of buildings in tropical countries requires specific characteristics unlike those in countries with four distinct seasons. Buildings in non-tropical climates must protect their inhabitants from extreme weather, meaning that the architecture’s connection with nature is necessarily limited by a boundary which can withstand extreme climatic differences. In tropical countries, on the other hand, the temperature does not fluctuate much throughout the year, so the temperature difference between seasons is not extreme. This characteristic is reflected in traditional Nusantara architecture, which incorporates a breathable wall so that free winds come in, reducing heat. The roof is tilted or saddled-shaped to keep rain water away from the building. The architecture uses organic materials and includes terraces for dialogue with nature. Modern Indonesian architecture, however, particularly in large cities, is mostly closed off, severely limiting the interaction with nature. Since the advent of air conditioning (AC) technology during the 1980’s, architecture has changed to seal the boundaries of the building. Advances in information technology such as Internet and smartphones have made for further changes to architecture in the area; some functional spaces are being discarded, while others are expanded. The relationship between architecture and nature is now constrained by impenetrable materials such as brick, concrete and glass, as opposed to the more traditional, permeable boundary. In contrast to this trend, modern Indonesian society is tempted to form a closer relationship with nature. This paper examines how a relationship between nature and the interior of buildings may be accommodated again, presenting some existing projects by several architects from Europe and Asian countries—including the authors’ own work—as case studies.
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Pradono, Budi. "The Interiority of Proximity Between Nature and Architecture in Contemporary and Tropically Context with Cases Studies." ARTEKS Jurnal Teknik Arsitektur 3, no. 2 (June 1, 2019): 129. http://dx.doi.org/10.30822/artk.v3i2.212.
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The interiority of buildings in tropical countries requires specific characteristics unlike those in countries with four distinct seasons. Buildings in non-tropical climates must protect their inhabitants from extreme weather, meaning that the architecture’s connection with nature is necessarily limited by a boundary which can withstand extreme climatic differences. In tropical countries, on the other hand, the temperature does not fluctuate much throughout the year, so the temperature difference between seasons is not extreme. This characteristic is reflected in traditional Nusantara architecture, which incorporates a breathable wall so that free winds come in, reducing heat. The roof is tilted or saddled-shaped to keep rain water away from the building. The architecture uses organic materials and includes terraces for dialogue with nature. Modern Indonesian architecture, however, particularly in large cities, is mostly closed off, severely limiting the interaction with nature. Since the advent of air conditioning (AC) technology during the 1980’s, architecture has changed to seal the boundaries of the building. Advances in information technology such as Internet and smartphones have made for further changes to architecture in the area; some functional spaces are being discarded, while others are expanded. The relationship between architecture and nature is now constrained by impenetrable materials such as brick, concrete and glass, as opposed to the more traditional, permeable boundary. In contrast to this trend, modern Indonesian society is tempted to form a closer relationship with nature. This paper examines how a relationship between nature and the interior of buildings may be accommodated again, presenting some existing projects by several architects from Europe and Asian countries—including the authors’ own work—as case studies.
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Murdiyarso, Daniel, and Erna S. Adiningsih. "Climate anomalies, Indonesian vegetation fires and terrestrial carbon emissions." Mitigation and Adaptation Strategies for Global Change 12, no. 1 (October 10, 2006): 101–12. http://dx.doi.org/10.1007/s11027-006-9047-4.
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Hadi Prabowo, Bambang. "The Economic Cascading Effect on Future Climate Change and Agriculture Economic in Indonesia." Tamansiswa Management Journal International 3, no. 1 (October 31, 2021): 4–7. http://dx.doi.org/10.54204/tmji/vol312021002.
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Indonesia is a country with a significant agricultural sector in its economy. Indonesia with a tropical climate is home to a variety of animals and plants. The diversity of flora and fauna in Indonesia can be threatened by climate change. In addition, the agricultural sector in Indonesia is also possible to receive the adverse effects of climate change.This study adapts the method from Hallegatte (2008) using the regional adaptive input-output (ARIO) method for assessing the economic and climate change in Indonesia.Indonesia is a country that has a fairly large agricultural sector so changes in temperature have a major impact on the economy in Indonesia. Changes in temperature greatly affect the economy and agriculture. Changes in temperature also have an impact on decreasing crop yields and decreasing community economic activity which has an impact on decreasing economic growth. Changes in temperature that are getting hotter in Indonesia within a certain degree range can result in natural and economic disasters, including famine.
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Athya, Athya, Sukanda Husin, and Delfiyanti Delfiyanti. "Harmonization of Common but Differentiated Responsibility Principles as an International Law Norm towards National Law for the World Climate System Protection." International Journal of Multicultural and Multireligious Understanding 6, no. 2 (April 12, 2019): 126. http://dx.doi.org/10.18415/ijmmu.v6i2.658.
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Harmonization efforts are needed because the applicable laws and regulations must be adapted to the various changes that have occurred in the Indonesian legal system. There are two main issues. The first one is the form of harmonization of the common but differentiated responsibility principles as an international legal norm towards national law for the protection of the world climate system, and the second one is Indonesia's obstacles in implementing the CBDR principle. This study applies normative juridical method using descriptive analysis. The data will be analyzed in a qualitative manner. The results of this study are, firstly, Indonesia carries out harmonization as the implementation of the contents of the Kyoto protocol through Law No. 32 of 2009 concerning Environmental Protection and Management. Secondly, the biggest obstacle in implementing the CBDR principle in Indonesia is corruption, collusion and nepotism.
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Syahid Muttaqin, Andi, Utia Suarma, Emilya Nurjani, Faricha Kurniadhini, Ratna Prabaningrum, and Retno Wulandari. "The impact of climate variability on tobacco productivity over Temanggung Regency, Indonesia." E3S Web of Conferences 76 (2019): 04003. http://dx.doi.org/10.1051/e3sconf/20197604003.
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Indonesia is among the most affected regions by climate variability and change. Located between the Pacific and the Indian Ocean, Indonesia is mostly influenced by some climate variabilities, such as the monsoon, El-Nino Southern Oscillation (ENSO), and Indian Ocean Dipole (IOD). These climate variabilities affect significantly on the Indonesian rainfall that further increase the chances of crop failure, specifically on the tobacco yield over Temanggung Regency which is known as the producer of good quality tobacco in Indonesia. Tobacco needs a sufficient dry condition prior to the harvest stage due to maintains its productivity and leaf quality. This ideal condition could be achieved when the dry season, typically in the mid of the year for Temanggung, is not affected by any wet climate variability. Moreover, based on this study, it was found that there was the most remarkable decline in tobacco productivity in 2016 since the required dry condition was interrupted by the prolonged significant rainfall which depicted by strong mid-year negative-IOD indices. The analysis utilized the dataset of tobacco productivity, daily rainfall intensity, and the indices of monsoon, ENSO, and IOD for the period of seven years, from 2010– 2016. This study concludes that the climate variabilities give a huge contribution to the profitable tobacco cultivation. Furthermore, efforts to adapt and to mitigate the impacts of the climate variability in Indonesia, specifically for the agriculture sector, is needed by way of increasing the various stakeholder's knowledge that involved in policy planning and decision-making as well as involving the farmers in the training on climate adaptation and mitigation.
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Kirono, Dewi G. C., Silva Larson, Grace Tjandraatmadja, Anne Leitch, Luis Neumann, Shiroma Maheepala, Roland Barkey, Amran Achmad, and Mary Selintung. "Adapting to climate change through urban water management: a participatory case study in Indonesia." Regional Environmental Change 14, no. 1 (June 29, 2013): 355–67. http://dx.doi.org/10.1007/s10113-013-0498-3.
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