Relevant bibliographies by topics / Arable cropland

Academic literature on the topic 'Arable cropland'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Arable cropland"

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Yan, Huimin, Wenpeng Du, Ying Zhou, Liang Luo, and Zhong’en Niu. "Satellite-Based Evidences to Improve Cropland Productivity on the High-Standard Farmland Project Regions in Henan Province, China." Remote Sensing 14, no. 7 (April 2, 2022): 1724. http://dx.doi.org/10.3390/rs14071724.

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Under the pressure of limited arable land and increasing demand for food, improving the quality of existing arable land has become a priority to ensure food security. The Chinese government gives great importance to improving cropland productivity by focusing on the construction of high-standard farmland (HSF). The government puts forward the goal of constructing 1.2 billion mu (100 mu ≈ 6.67 hectares) of HSF by 2030. Therefore, how to apply remote sensing to monitor the ability to increase and stabilize yields in HSF project regions has become an essential task for proving the efficiency of HSF construction. Based on HSF project distribution data, Moderate Resolution Imaging Spectroradiometer (MODIS) data and Landsat-8 Operational Land Imager (Landsat8-OLI) data, this study develops a method to monitor cropland productivity improvement by measuring cropland productivity level (CPL), disaster resistance ability (DRA) and homogeneous yield degree (HYD) in the HSF project region. Taking China’s largest grain production province (Henan Province) as a case study area, research shows that a light use efficiency model that includes multiple cropping data can effectively detect changes in cropland productivity before and after HSF construction. Furthermore, integrated Landsat8-OLI and MODIS data can detect changes in DRA and HYD before and after HSF construction with higher temporal and spatial resolution. In 109 HSF project regions concentrated and distributed in contiguous regions in Henan Province, the average cropland productivity increased by 145 kg/mu; among the eight sample project regions, DRA was improved in seven sample project regions; and the HYD in all eight sample project regions was greatly improved (the degree of increase is more than 75%). This evidence from satellites proves that the Chinese HSF project has significantly improved the CPL, DRA and HYD of cropland, while this study also verifies the practicability of the three indices to monitor the efficiency of HSF construction.
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Yang, Guang Hua, Yao Qi Yang, Yang Gao, Yang Yu, Shan Lin, and Yao Li. "Farmland Damage and Treatment Status in Coal Mining Subsidence Area with High Phreatic Water Level." Advanced Materials Research 838-841 (November 2013): 2190–94. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2190.

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It is a typical and representative problem which coal mining has been causing serious damage in the Eastern Plains of China with high phreatic water level. Based on GIS technology, we analyzed the characters of cropland and coal resources, the results showed that the area of the overlapped areas of cropland and coal resources was 1.28 × 105km2, which accounted for 38.22% of the total arable land of the study area. Based on investigation and statistics, we investigated and forecast the farmland damage and analyzed the comprehensive treatment status in the typical region, the results showed that coal mining led to farmland subsided depth and perennial water, the recovery rate of cultivated land was between 50% and 70% in the treated area and more lower in the untreated area, the trend of arable land area continued to reduce would be hard to contain, the local governments faced unprecedented pressure on cultivated land protection.
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Beule, Lukas, and Petr Karlovsky. "Tree rows in temperate agroforestry croplands alter the composition of soil bacterial communities." PLOS ONE 16, no. 2 (February 10, 2021): e0246919. http://dx.doi.org/10.1371/journal.pone.0246919.

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Background Tree-based intercropping (agroforestry) has been advocated to reduce adverse environmental impacts of conventional arable cropping. Modern agroforestry systems in the temperate zone are alley-cropping systems that combine rows of fast-growing trees with rows of arable crops. Soil microbial communities in these systems have been investigated intensively; however, molecular studies with high taxonomical resolution are scarce. Methods Here, we assessed the effect of temperate agroforestry on the abundance, diversity and composition of soil bacterial communities at three paired poplar-based alley cropping and conventional monoculture cropland systems using real-time PCR and Illumina sequencing of bacterial 16S rRNA genes. Two of the three systems grew summer barley (Hordeum vulgare); one system grew maize (Zea mays) in the sampling year. To capture the spatial heterogeneity induced by the tree rows, soil samples in the agroforestry systems were collected along transects spanning from the centre of the tree rows to the centre of the agroforestry crop rows. Results Tree rows of temperate agroforestry systems increased the abundance of soil bacteria while their alpha diversity remained largely unaffected. The composition of the bacterial communities in tree rows differed from those in arable land (crop rows of the agroforestry systems and conventional monoculture croplands). Several bacterial groups in soil showed strong association with either tree rows or arable land, revealing that the introduction of trees into arable land through agroforestry is accompanied by the introduction of a tree row-associated microbiome. Conclusion The presence of tree row-associated bacteria in agroforestry increases the overall microbial diversity of the system. We speculate that the increase in biodiversity is accompanied by functional diversification. Differences in plant-derived nutrients (root exudates and tree litter) and management practices (fertilization and tillage) likely account for the differences between bacterial communities of tree rows and arable land in agroforestry systems.
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Nguyen, Lan, Deepak Joshi, and Geoffrey Henebry. "Improved Change Detection with Trajectory-Based Approach: Application to Quantify Cropland Expansion in South Dakota." Land 8, no. 4 (April 3, 2019): 57. http://dx.doi.org/10.3390/land8040057.

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The growing demand for biofuel production increased agricultural activities in South Dakota, leading to the conversion of grassland to cropland. Although a few land change studies have been conducted in this area, they lacked spatial details and were based on the traditional bi-temporal change detection that may return incorrect rates of conversion. This study aimed to provide a more complete view of land conversion in South Dakota using a trajectory-based analysis that considers the entire satellite-based land cover/land use time series to improve change detection. We estimated cropland expansion of 5447 km2 (equivalent to 14% of the existing cropland area) between 2007 and 2015, which matches much more closely the reports from the National Agriculture Statistics Service—NASS (5921 km2)—and the National Resources Inventory—NRI (5034 km2)—than an estimation from the bi-temporal approach (8018 km2). Cropland gains were mostly concentrated in 10 counties in northern and central South Dakota. Urbanizing Lincoln County, part of the Sioux Falls metropolitan area, is the only county with a net loss in cropland area over the study period. An evaluation of land suitability for crops using the Soil Survey Geographic Database (SSURGO) indicated a scarcity in high-quality arable land available for cropland expansion.
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Feng, Haiying, and Victor Squires. "The temporal and spatial scales of arable land loss and its impact in Guangxi, China: A Commentary." Advances in Social Sciences Research Journal 9, no. 1 (January 13, 2022): 76–84. http://dx.doi.org/10.14738/assrj.91.11512.

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Cropland abandonment because of rural depopulation or policy interventions has become a key issue in Chinese mountainous areas. One such region is the Guangxi Karst Mountainous Area (GKMA), a zone where more than 59% of total land area is hilly and arable land of a commercially viable size is almost non-existent. The rugged terrain and land fragmentation in upland karst areas result in the scarcity of land suitable for cultivation. Although depopulation and declining agriculture since 2000 within the GKMA have led to vast areas of abandoned cropland, the spatiotemporal distribution that underlies this pattern as well as its causes remain little understood. Geomorphic features also bring about differences in the distribution of settlements. Settlements with different degrees of distribution are accompanied by spatial differences in cultivated land resources, which lead to differences in the sufficiency of cultivated land resources. In this paper we provide an overview of the magnitude of the problem of arable land loss. settlements and analyze the spatial distribution and the spatial agglomeration of the cultivated land.
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Squire, Geoffrey R., Mark Young, Linda Ford, Gillian Banks, and Cathy Hawes. "Defining Targets for Reversing Declines of Soil Carbon in High-Intensity Arable Cropping." Agronomy 10, no. 7 (July 6, 2020): 973. http://dx.doi.org/10.3390/agronomy10070973.

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Soil organic carbon (SOC) is declining globally due to intensification of agriculture. Reversing declines should reduce soil erosion, maintain yields, raise the soil’s atmospheric carbon sink, and improve habitat for biodiversity. Commercial fields were sampled in a diverse European Atlantic zone cropland to relate SOC status to cropping intensity and to define a realistic target for restoration. SOC (%C by mass) decreased from 4% to 2% as the proportion of high-intensity crops increased from zero to 55% (linear regression, F pr. < 0.001). In further sampling in and around high-intensity fields, mean SOC increased from 2.4% in cultivated soil to 3.3% in field margins and 4.8% in nearby uncultivated land (F pr. < 0.001). Three broad zones of SOC in close spatial proximity were then defined: 1) high-intensity arable from 1% to 3%, 2) mid-intensity arable and arable-grass from 3% to 5% and 3) uncultivated and semi-natural land from 5% upwards. C:N ratio was constrained around 12, unaffected by cropping intensity, but slightly lower in fields than in margins and uncultivated land (F pr. < 0.001). A feasible target SOC of just above 3% was defined for high-intensity sites. There should be no biophysical obstacle to raising SOC above 3% in the high-input sector. Results argue against treating cropland of this type as uniform: assessment and restoration should be implemented field by field.
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Wu, Zhongrong, Xiulin Ye, Zhongfan Kuang, Hui Ye, and Xumao Zhao. "Positive Effects of Land Use Change on Wintering Bar-Headed Geese between 2010 and 2021." Animals 12, no. 22 (November 14, 2022): 3142. http://dx.doi.org/10.3390/ani12223142.

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Human-induced land use change often drives species losses, yet some species can derive benefits from particular land use changes. Thus, case studies of how specific land use changes affect population size for species of interest are essential to their conservation. In this study, wintering bar-headed geese in Caohai, in Guizhou Province in China, were fitted with satellite trackers to assess their use of different land types and the impact of land use changes occurring between 2010 and 2021. We found that bar-headed geese preferentially spent time in arable lands, grasslands, and open water; most foraging occurred in cropland (59.5%) and grasslands (26.4%), while resting occurred in open water (68.3%) and in grasslands (43.5%). The population of wintering bar-headed geese in Caohai increased in size from 1366 to 2803 between 2010 and 2021. A concomitant decrease in cropland area (10.7%) and increase in open water (5.52%) and grasslands (48.45%) positively affected population growth. The use of abandoned croplands reduced human disturbance of goose foraging, while larger water and grassland areas provided more foraging and resting opportunities for bar-headed geese. Our study reveals a positive impact of recent land use changes on waterbird populations and provides a case study for managing human–wildlife relationships and protecting waterbirds and other wildlife.
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Orłowski, Grzegorz. "Cropland use by birds wintering in arable landscape in south-western Poland." Agriculture, Ecosystems & Environment 116, no. 3-4 (September 2006): 273–79. http://dx.doi.org/10.1016/j.agee.2006.03.005.

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Li, Chaofan, Qifei Han, Geping Luo, Chengyi Zhao, Shoubo Li, Yuangang Wang, and Dongsheng Yu. "Effects of Cropland Conversion and Climate Change on Agrosystem Carbon Balance of China’s Dryland: A Typical Watershed Study." Sustainability 10, no. 12 (November 29, 2018): 4508. http://dx.doi.org/10.3390/su10124508.

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Remarkable warm‒wet climate shifts and intensive cropland expansion strongly affected carbon (C) cycle and threaten agricultural sustainability in northwest China. In this study, we integrated a process-based ecosystem model and an empirical C bookkeeping model to investigate the coupled and isolated effects of arable land conversions and climate change (CLM) on regional C balance in a typical watershed of northwest China. Results revealed that the farmland area increased by 3367.31 km2 during 1979–2014. The combined effects of CLM with net cropland expansion enlarged the vegetation C (VEGC) and the soil organic C (SOC) stock by 2.83 and 11.83 Tg, respectively, and were strongest in 2008–2014. The conversions between desert grassland and cropland were the major driving forces for regional C balance. Cropland expansion shared equal effects on VEGC increase with CLM, but its effect on SOC increment was 53 times larger than CLM’s. VEGC was more responsive to CLM, whereas SOC gained more benefits from land management. The C sink from reclamation suffered from high water consumption and is facing great threats due to glaciers and mountain lake shrinking and groundwater overpumping. Water-saving irrigation techniques and environmentally friendly water use strategies are essential for local agricultural sustainability.
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Barrow, C. J. "The Present Position and Future Development of Rain-Fed Agriculture in the Tropics." Outlook on Agriculture 17, no. 3 (September 1988): 112–19. http://dx.doi.org/10.1177/003072708801700304.

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By 2000 AD approximately 84 per cent of the world's arable cropland will rely on rainfall. Throughout developing countries the yields of many rain-fed farmers are falling and their ability to sustain production seems uncertain. Land degradation must be halted, security of harvests improved, and wherever necessary yields increased, crops diversified, and the area cultivated extended. For the most cultivators some form of improved rain-fed agriculture is likely to be the only practical route to such goals.
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Book chapters on the topic "Arable cropland"

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G. Biro Turk, Khalid, Faisal I. Zeineldin, and Abdulrahman M. Alghannam. "Mapping and Assessment of Evapotranspiration over Different Land-Use/Land-Cover Types in Arid Ecosystem." In Evapotranspiration - Recent Advances and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96759.

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Evapotranspiration (ET) is an essential process for defining the mass and energy relationship between soil, crop and atmosphere. This study was conducted in the Eastern Region of Saudi Arabia, to estimate the actual daily, monthly and annual evapotranspiration (ETa) for different land-use systems using Landsat-8 satellite data during the year 2017/2018. Initially, six land-use and land-cover (LULC) types were identified, namely: date palm, cropland, bare land, urban land, aquatic vegetation, and open water bodies. The Surface Energy Balance Algorithm for Land (SEBAL) supported by climate data was used to compute the ETa. The SEBAL model outputs were validated using the FAO Penman-Monteith (FAO P-M) method coupled with field observation. The results showed that the annual ETa values varied between 800 and 1400 mm.year−1 for date palm, 2000 mm.year−1 for open water and 800 mm.year−1 for croplands. The validation measure showed a significant agreement level between the SEBAL model and the FAO P-M method with RMSE of 0.84, 0.98 and 1.38 mm.day−1 for date palm, open water and cropland respectively. The study concludes that the ETa produced from the satellite data and the SEBAL model is useful for water resource management under arid ecosystem of the study area.
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Chabbi, A., C. Rumpel, K. Klumpp, and A. J. Franzluebbers. "Managing grasslands to optimize soil carbon sequestration." In Understanding and fostering soil carbon sequestration, 523–54. Burleigh Dodds Science Publishing, 2022. http://dx.doi.org/10.19103/as.2022.0106.17.

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In this chapter, we will discuss the effect of different grassland management practices on greenhouse gas (GHG) emissions and soil organic carbon (SOC) sequestration. This includes comparison of grasslands with arable croplands, the role of N fertilization, and grazing strategies. Special emphasis will be given to grasslands in rotation with cropping systems and integration with timber systems to improve sustainable management and SOC sequestration.
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Sutton, M. A., J. K. Burkhardt, D. Guerin, and D. Fowler. "Measurement and modelling of ammonia exchange over arable croplands." In Studies in Environmental Science, 71–80. Elsevier, 1995. http://dx.doi.org/10.1016/s0166-1116(06)80274-8.

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Mfundisi, Kelebogile B., Alex M. Mudabeti, and Anastacia Makati. "Integrating Geoinformatics and Remote Sensing Data to Assess Impacts of Flooding on Land Productivity in the Zambezi River Floodplains, Namibia." In Advances in Geospatial Technologies, 201–12. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3440-2.ch013.

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Exposure to flood waters poses a risk to land productivity and livelihoods of communities in the Zambezi River Basin who are engaged in arable agricultural activities along its floodplains. This is exacerbated by occurrence of frequent flooding events in the area since 2008 due to climate variability. The objective of this research is to assess the extent of exposure to flooding on floodplain land used for maize production along the Zambezi River in Namibia. Existing survey information on geospatial locations of farms is used as baseline data. Field survey maps are then overlaid into flood maps developed using 2013 Landsat satellite data taken during peak flood event, and DEM. Weighted sum overlay results show that 14.5% of croplands were inundated with floods by March 2013. Integration of inundation results into a DEM show areas at low, medium and high risk to flooding. This provides useful geospatial information for flood mitigation.
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"Table 1: Average composition of faeces and urine after separation by a filter net (0.78x0.78) Faeces Urine Dry matter (%) 32.50 1.92 Crude ash of dry matter 25.70 63.10 N-Kj (%) 1.24 0.34 NH -N 34 0.35 (%) 1.64 0.05 K20 85 0.62 CaO 45 0.04 MgO 48 0.02 Cu ppm 197 2.50 pH 9.1 From Table 1 it is evident that the percentages of the minerals in the faeces are high. In the urine the percentages are much lower except potassium. By manuring grassland potassium is the limiting factor, while o.n arable land the quantity of nitrogen needs to be taken into account. In applying solid manure to cropland the Cu-content needs to be taken into account. Depending on the Cu-status of the soil, 0-6 kg Cu/ha is advised. By fertilizing with 10 t/ha of solid manure about 3 kg Cu/ha is administered Because only a small amount of copper is taken up by plant growth and lost through drainage, the application of solid manure needs to be spread out over a few years if Cu is not to accumulate in the soil. 5.2 Odour_emissions It can be concluded that separation and removal of urine and faeces from piggery result in a reduced formation of odour components (5). This might result in a decrease of the precieved odour as compared with a housing system with underslat slurry storage. In order to obtain a reliable figure for the actual odour reduction, measurements have been carried out. Samples of ventilation air from a pighouse with underslat slurry storage as well as a pighouse with filter nets were taken on a number of different occasions. All samples were collected in bags made from FEP-Teflon. Odour experiments were performed the following day using a dilution apparatus (olfactometer) and a group of observers (panel). Since the establishment of the odour intensity is a time consuming affair, it has become practice in Dutch agricultural odour research to concentrate on the establishment of the odour treshold (6). The odour treshold is defined as that dilution of odorous air which." In Odour Prevention and Control of Organic Sludge and Livestock Farming, 232. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-92.

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Conference papers on the topic "Arable cropland"

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Larkin, Christina, M. Andrews, Rachael James, Christopher Pearce, Dimitar Epihov, Heather Goring-Harford, and David Beerling. "CO2 removal associated with enhanced rock weathering in arable croplands in Norfolk, UK." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.11932.

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Dimov, Dimo, Fabian Low, Mirzahayot Ibrakhimov, Sarah-Schonbrodt-Stitt, and Christopher Conrad. "Feature extraction and machine learning for the classification of active cropland in the Aral Sea Basin." In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE, 2017. http://dx.doi.org/10.1109/igarss.2017.8127326.

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