Relevant bibliographies by topics / Environmental degradation China Chengdu

Academic literature on the topic 'Environmental degradation China Chengdu'

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Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Environmental degradation China Chengdu"

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Lachatre, Mathieu, Gilles Foret, Benoit Laurent, Guillaume Siour, Juan Cuesta, Gaëlle Dufour, Fan Meng, Wei Tang, Qijie Zhang, and Matthias Beekmann. "Air Quality Degradation by Mineral Dust over Beijing, Chengdu and Shanghai Chinese Megacities." Atmosphere 11, no. 7 (July 2, 2020): 708. http://dx.doi.org/10.3390/atmos11070708.

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Air pollution in Chinese megacities has reached extremely hazardous levels, and human activities are responsible for the emission or production of large amounts of particulate matter (PM). In addition to PM from anthropogenic sources, natural phenomena, such as dust storms over Asian deserts, may also emit large amounts of PM, which lead episodically to poor air quality over Chinese megacities. In this paper, we quantify the degradation of air quality by dust over Beijing, Chengdu and Shanghai megacities using the three dimensions (3D) chemistry transport model CHIMERE, which simulates dust emission and transport online. In the first part of our work, we evaluate dust emissions using Moderate Resolution Imaging Spectroradiometer (MODIS) and Infrared Atmospheric Sounding Interferometer (IASI) satellite observations of aerosol optical depth, respectively, in the visible and the thermal infrared over source areas. PM simulations were also evaluated compared to surface monitoring stations. Then, mineral dust emissions and their impacts on particle composition of several Chinese megacities were analyzed. Dust emissions and transport over China were simulated during three years (2011, 2013 and 2015). Annual dust contributions to the PM 10 budget over Beijing, Chengdu and Shanghai were evaluated respectively as 6.6%, 9.5% and 9.3%. Dust outbreaks largely contribute to poor air quality events during springtime. Indeed it was found that dust significantly contribute for 22%, 52% and 43% of spring PM 10 events (for Beijing, Chengdu and Shanghai respectively).
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Clayton, Susan, Sarah M. Bexell, Ping Xu, Ya Fei Tang, Wen Jing Li, and Li Chen. "Environmental literacy and nature experience in Chengdu, China." Environmental Education Research 25, no. 7 (February 4, 2019): 1105–18. http://dx.doi.org/10.1080/13504622.2019.1569207.

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Wang, Ju, Juan Li, Xinlong Li, and Chunsheng Fang. "Characteristics of Air Pollutants Emission and Its Impacts on Public Health of Chengdu, Western China." International Journal of Environmental Research and Public Health 19, no. 24 (December 15, 2022): 16852. http://dx.doi.org/10.3390/ijerph192416852.

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Pollution caused by PM2.5 and O3 are common environmental problems which can easily affect human health. Chengdu is a major central city in Western China, and there is little research on the regional emissions and health effects of air pollution in Chengdu. According to the Multi-resolution Emissions Inventory of the Chinese Model, 2017 (MEIC v1.3), this study compiled the air pollutant emission inventory of Chengdu. The results show that the pollutant emission of Chengdu is generally higher in winter than in summer. The southeast area of Chengdu is the key area where emissions of residential and industrial sectors are dominant. Through air quality simulation with a Weather Research and Forecasting model, coupled with the Community Multiscale Air Quality (WRF-CMAQ), the health effects of PM2.5 and O3 in winter and summer in Chengdu of 2017 were investigated. The primary pollutant in winter is PM2.5 and O3 in summer. PM2.5 pollution accounted for 351 deaths in January and July 2017, and O3 pollution accounted for 328 deaths in the same period. There were 276 deaths in rural areas and 413 in urban areas. In January and July 2017, the health economic loss caused by PM2.5 accounted for 0.0974% of the gross regional product (GDP) of Chengdu in 2017, and the health economic loss caused by O3 accounted for 0.0910%.
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Wang, Sicheng, and Robert B. Noland. "Variation in ride-hailing trips in Chengdu, China." Transportation Research Part D: Transport and Environment 90 (January 2021): 102596. http://dx.doi.org/10.1016/j.trd.2020.102596.

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Tong, Hongjin, Sha Liu, Ruixue Liao, Xiaomei Wei, Kangli Che, Fenggang Li, and Wei Liu. "Temporal-spatial Distribution Characteristics of Air Pollutants in Chengdu Economic Region, China." E3S Web of Conferences 118 (2019): 04027. http://dx.doi.org/10.1051/e3sconf/201911804027.

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The previous characteristics researches of air pollution were almost based on data from national environmental monitoring stations in 2015. The temporal variation curves of air pollutants and the ArcGIS grid interpolation method were used to analyze the spatial-temporal variation of air pollutants in five cities of Chengdu economic region. In 2015, the monthly change trends of PM2.5, PM10, CO, NO2 and NO of air pollutants in Chengdu economic region were basically the same. The maximum monthly average concentration was in January or December, and the minimum was in May to September. The temporal variation of SO2 was characterized by little fluctuation of monthly concentration. The temporal variation characteristics of O3 were opposite to other pollutants. The spatial distribution of PM10 and PM2.5 was characterized by the largest concentration in Chengdu and the southwest of Meishan, in which they were mainly concentrated in the central area of Chengdu in winter. The average concentration of CO in Chengdu was the largest, followed by Deyang and Mianyang, and Meishan and Ziyang was the smallest. The concentrations of NO2 and NO in Chengdu were the largest, while those in Ziyang were the smallest. The spatial distribution characteristics of O3 were different from other pollutants. The areas with the largest concentration of O3 were Ziyang and a small part of west in Chengdu. The spatial distribution of SO2 was characterized by the largest concentration of SO2 in Ziyang, the lowest concentration in Mianyang and Deyang.
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Shi, Hua, Yong-mei Jiang, Jia-yuan Li, Fang Liu, Hong Wang, Fan Yu, and Hui Yang. "Environmental Lead Exposure Among Children in Chengdu, China, 2007–2009." Biological Trace Element Research 143, no. 1 (October 2, 2010): 97–102. http://dx.doi.org/10.1007/s12011-010-8849-0.

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Zeng, Yingying, Daniel A. Jaffe, Xue Qiao, Yucong Miao, and Ya Tang. "Prediction of Potentially High PM2.5 Concentrations in Chengdu, China." Aerosol and Air Quality Research 20, no. 5 (2020): 956–65. http://dx.doi.org/10.4209/aaqr.2019.11.0586.

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Lo, Carlos W. H., and Gerald E. Fryxell. "Enforcement Styles Among Environmental Protection Officials in China." Journal of Public Policy 23, no. 1 (January 2003): 81–115. http://dx.doi.org/10.1017/s0143814x03003040.

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Researchers examining regulatory enforcement have found that enforcement styles tend to be contextually determined in Western countries, which has resulted in a divergence in regulatory approach at both the national and local levels. Given the dearth of regulation research in non-democratic regimes, this paper makes an initial attempt to fill the gap by studying the impact of regional variations in regulatory enforcement in China. Accordingly, the effects of external support and organizational factors on the preferences for enforcement styles of environmental officials in three Chinese regions were examined. It was found that the strength of these influences on enforcement style dimensions is more variable than was anticipated. Generally, the patterns of relationships for Guangzhou and Chengdu were similar, while those for Dalian appear to reflect its unique environmental, economic and political conditions. Public support appears to promote several dimensions of enforcement style (i.e., education, prioritization, coercion) in Guangzhou and Chengdu; however, in Dalian the influence of government was greater than that of public support. The effects of internal factors were even more variable and probably reflect unique characteristics and priorities within each agency. Overall, the results suggest that caution is warranted when interpreting current findings about China that have used samples from a single region and that enforcement agency directors in nondemocratic regimes must take into account a complex array of contextual factors in attempting to promote a particular style of enforcement.
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Zhang, Chi, Ying Zhang, Zhengqiang Li, Yongqian Wang, Hua Xu, Kaitao Li, Donghui Li, Yisong Xie, and Yang Zhang. "Sub-Mode Aerosol Volume Size Distribution and Complex Refractive Index from the Three-Year Ground-Based Measurements in Chengdu China." Atmosphere 10, no. 2 (January 26, 2019): 46. http://dx.doi.org/10.3390/atmos10020046.

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Chengdu is a typical basin city of Southwest China with rare observations of remote sensing measurements. To assess the climate change and establish a region aerosol model, a deeper understanding of the separated volume size distribution (VSD) and complex refractive index (CRI) is required. In this study, we employed the sub-mode VSD and CRI in Chengdu based on the three years observation data to investigate the sub-mode characteristics and climate effects. The annual average fraction of the fine-mode aerosol optical depth (AODf) is 92%, which has the same monthly tendency as the total AOD. But the coarse-mode aerosol optical depth (AODc) has little variation in different months. There are four distinguishing modes of VSD in Chengdu; the median radii are 0.17 μm ± 0.05, 0.31 μm ± 0.12, 1.62 μm ± 0.45, 3.25 μm ± 0.99, respectively. The multi-year average and seasonal variations of fine- and coarse-mode VSD and CRI are also analyzed to characterize aerosols over this region. The fine-mode single scattering albedos (SSAs) are higher than the coarse-mode ones, which suggests that the coarse-mode aerosols have a stronger absorbing effect on solar light than the small-size aerosol particles in Chengdu.
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Yin, Hongling, Zhixiang Ye, Yingchun Yang, Wei Yuan, Changyan Qiu, Huawei Yuan, Min Wang, Shiping Li, and Changwu Zou. "Evolution of chemical composition of fogwater in winter in Chengdu, China." Journal of Environmental Sciences 25, no. 9 (September 2013): 1824–32. http://dx.doi.org/10.1016/s1001-0742(12)60230-7.

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Dissertations / Theses on the topic "Environmental degradation China Chengdu"

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Liu, Xuelin. "Measuring sustainable development in China : a 'green' measure of national product." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266112.

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Nishihara, Tetsuya, and 西原哲也. "Social and systemic obstacles to nature conservation policy in Hong Kong and Japan." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31953190.

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Haddock, Janet Elain. "Marine life degradation in Hong Kong : an evaluation of possible causes and mitigating strategies /." Thesis, Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B14709314.

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Nishihara, Tetsuya. "Social and systemic obstacles to nature conservation policy in Hong Kong and Japan." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B23425738.

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Mercer, Carly Taylor. "The Regional Outsourcing of Pollution: Investigating Urban and Rural Discrepancies in Industrialization and Environmental Degradation in China." Ohio University Honors Tutorial College / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1275669564.

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Zhang, Qian. "Pastoralists and the Environmental State : A study of ecological resettlement in Inner Mongolia, China." Doctoral thesis, Stockholms universitet, Kulturgeografiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115316.

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China's quest for sustainable development has given birth to a set of contested ‘ecological construction’ programmes. Focusing on ‘ecological resettlement’, a type of policy measure in a programme for restoring degraded grasslands, this thesis sets out a critical analysis in opposition to the dominant technical and managerial approaches to understanding environmentalisation. The aim is to draw out the politics of the formulation, implementation and effects of ecological resettlement at and across different scales. The study combines fieldwork, interviews, analysis of policy documents, and statistical analysis while theoretically, in addition to political ecology, it incorporates concepts and models from environmental governance, migration, and pastoralism studies. Environmentalisation is examined through three types of analysis: environmentalisation of the state, reshaping of state-society relations, and (re)territorialisation. A central theme is how local processes are linked to national considerations and how the local state acts as an intermediary between the central state and the pastoralists. The analysis exposes the practices that enabled the central state to define the problem of grasslands and devise interventions, illustrating the environmentalisation of the state. However, at the local level, incentives and interests defined by the political structure drove the developmental local state to pursue short-term-effective rather than sustainable practices. On the other hand, while the pastoral households responded to the projects with different strategies, their migration decisions suggested that social, economic and cultural considerations played a more important role than environmental concerns. Moreover, ecological resettlement has led to a significant change of Mongolian pastoralism. Land-tenure-based management further fragmented rangelands while the emergence of new social arrangements enabled migrant households to remain involved with pastoralism.
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Hung, Chui-shan Bonnie, and 洪翠珊. "Human impact on the structure and water status of urban park soils in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31226103.

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Teebay, Catherine. "Smoggy with a Chance of Acid Rain: A Comparison Between California's and China's Environmental Degradation and Response." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/cmc_theses/1359.

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California has long been credited for being an environmental policy pioneer. It only achieved this status after allowing pollution to develop for decades, however. As the aerospace and other manufacturing industries took off during World War II, the environment was sacrificed for industrial capitalism. In the 1950s, California began to respond to pollution after concern was expressed by the state and its residents. Today, the US EPA has adopted California emissions standards and looks to the state for guidance when establishing its policies regarding mobile emissions; California is an environmental policy leader. While California is recognized as an environmental leader, China is perceived as having forfeited the environment in exchange for rapid industrial growth starting in 1978. As pollution has worsened in China, the rest of the world has watched the Chinese Communist Party ignore its growing problem. Recently, the Chinese government started to acknowledge the growing concerns and expressed an interest in learning what it can do to mitigate its pollution problem. To this end, the Chinese government has been sending delegations of policymakers and researchers to California to learn from California’s successes and failures regarding environmental policy. This thesis compares California’s and China’s environmental degradation and policy response to the issue of pollution. Both California and China developed by way of industrial capitalism and have worked together in the past. California and China are inextricably linked, and have an opportunity to learn from one another and to work together to reach a common goal of pollution reduction.
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Tischenko, Igor. "Rural Industrialization: Integrated and Sustainable Solutions for Poverty Reduction in Rural China." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/cmc_theses/583.

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China has achieved unprecedented economic growth and consequent successes in poverty alleviation over the past three decades of economic liberalization and market-oriented reforms. Yet, in order to continue its progress in poverty reduction, while addressing pressing environmental and sociopolitical concerns, it is crucial for China’s leaders to achieve and sustain green, equitable, and robust economic performance in all parts of China. This thesis argues that a reconceptualized and strengthened rural industrialization program would enable China to maintain economic growth and assist with the transition to a domestically driven consumer economy. Moreover, rural industrialization, coupled with targeted administrative and institutional policy modifications, will enable the Chinese government to provide support to millions of its rural poor, thus avoiding social instability and potentially severe internal conflicts. Such a program would also lessen pollution and its associated costs on China’s densely populated cities, by shifting heavy urban industries to relatively less contaminated areas while adopting cleaner, environmentally sustainable technologies, introduced in a participatory manner in consultation with local communities. This approach would concurrently address regional, rural-to-urban, and intra-communal disparities, provide opportunity for “green growth” initiatives, and better equip rural populations to address growing vulnerabilities as a result of climate change.
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Books on the topic "Environmental degradation China Chengdu"

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Brown, Kerry, Qiang Zha, and Linsun Cheng. Geography and environment in China. Great Barrington, MA: Berkshire Publishing Group LLC, 2015.

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Patterns of China's lost harmony: A survey of the country's environmental degradation and protection. London: Routledge, 1994.

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Whitaker, Mark D. Ecological revolution: The political origins of environmental degradation and the environmental origins of axial religions : China, Japan, Europe. Saarbrüchen: LAP Lambert Academic Publishing, 2010.

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China) International Conference on Earth Observation for Global Changes (2nd 2009 Chengdu. Second International Conference on Earth Observation for Global Changes: 25-29 May 2009, Chengdu, China. Edited by Zhang Xianfeng, Beijing da xue, University of Waterloo, Technische Universität München, Chengdu li gong xue yuan, International Society for Photogrammetry and Remote Sensing, and SPIE (Society). Bellingham, Wash: SPIE, 2009.

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Zhang, J. C. Theory and practice of soil loss control in Eastern China. New York: Springer, 2011.

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United Nations Environment Programme. Regional Task Force on Legal Matters. Meeting. Reversing environmental degradation trends in the South China Sea and Gulf of Thailand: Report. Bangkok, Thailand: UNEP/GEF, 2005.

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Strizzi, Nicolino. The security implications for China of environmental degradation =: Dégradation de l'environnement et sécurité en Chine. Ottawa, Ont: Canadian Security Intelligence Service = Service canadien du renseignement de sécurité, 1996.

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China: Its environment and history. Lanham, Md: Rowman & Littlefield, 2012.

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International Symposium on Eco-Materials Processing & Design (7th 2006 Chengdu, China). Eco-materials processing & design VII: Proceedings of the Conference of the 7th International Symposium on Eco-materials processing and Design, January 8-11 2006, Chengdu, China. Uetikon-Zuerich: TransTP, 2006.

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Nei Menggu mu qu cao yuan tui hua yu sheng tai an quan dai de jian she. Huhehaote Shi: Nei Menggu da xue chu ban she, 2011.

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Book chapters on the topic "Environmental degradation China Chengdu"

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McBeath, Jerry, and Jenifer Huang McBeath. "Environmental Degradation and Food Security Policies in China." In China's Environmental Crisis, 85–119. New York: Palgrave Macmillan US, 2010. http://dx.doi.org/10.1057/9780230114364_5.

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Lan, Ji-Wu, Tony Liang-Tong Zhan, Yun-Min Chen, Han Ke, Zhao Liu, and Guo-Qing Lu. "Field Investigation On The Feasibility of Leachate Recirculation In Chengdu Msw Landfill, China." In Advances in Environmental Geotechnics, 649–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04460-1_72.

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Stein, Susanne, and Heike Hartmann. "Land Degradation and Land-Use Strategies in China's Northern Regions." In Routledge Handbook of Environmental Policy in China, 144–60. Abingdon, Oxon ; New York, NY : Routledge, 2017.: Routledge, 2017. http://dx.doi.org/10.4324/9781315736761-13.

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Yi, Fang. "Economic Growth and Environmental Degradation in China: An Institutional Perspective." In Applied Economics and Policy Studies, 65–74. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5359-9_9.

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Liu, Fang, Shijie Wang, Xiuming Liu, Yuansheng Liu, and Jian Long. "Changes of Soil Enzyme Activities in the Process of Karst Forest Degradation in Southwest China." In Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone, 323–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-05297-2_94.

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Zhao, Xiaobo. "Soil Degradation Through Agriculture in China: Its Extent, Impacts and Implications for Environmental Law Reform." In International Yearbook of Soil Law and Policy 2017, 37–63. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68885-5_4.

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"Environmental degradation." In Critical Issues in Contemporary China, 117–31. Routledge, 2016. http://dx.doi.org/10.4324/9781315689050-15.

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"China's Extreme Environmental Degradation." In The China Crisis, 177–221. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118705513.ch6.

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Fuchs, Daniel, and Edwin Schmitt. "China’s Environmental Crackdown: The Case of Chengdu." In Made in China Yearbook 2017: Gilded Age. ANU Press, 2018. http://dx.doi.org/10.22459/mic.04.2018.30.

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Lakshmana, C. M. "Regional experience of environmental degradation." In The Rise of India and China, 257–73. Routledge India, 2020. http://dx.doi.org/10.4324/9781003005339-16.

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Conference papers on the topic "Environmental degradation China Chengdu"

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Gathier, Flavien, Cao Xulong, Ming Yukun, Yuan Fuqing, Gong Jun, Zhao Fangjian, Li Bingxian, Dorian Rotier, Changfa Zhu, and Kemin Xie. "Offshore Large Scale Polymer Flood Implementation at Chengdao Field." In Offshore Technology Conference Asia. OTC, 2022. http://dx.doi.org/10.4043/31527-ms.

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Abstract The number of polymer injection projects has greatly increased worldwide in the past decade, with more and more full-field implementations. More recently, the focus has shifted towards deploying such technologies offshore, which presents specific constraints regarding facilities, logistics, or even produced water treatment. Polymer flooding is an EOR technique that has been widely implemented in China. The oil & gas company SINOPEC has gained extensive experience with polymer while developing the Shengli oil fields. The implementation of polymer flooding in the Chengdao offshore oil field was sanctioned in 2019. This large-scale project has seen polymer injection in 43 wells since October 2020. Polymer flooding helps increase oil production and accelerate recovery by providing a better sweep efficiency as a tertiary oil recovery method. It also results in unique environmental benefits with a reduction in CO2 emissions by 52 to 64% per produced barrel of oil. This project consists in injecting polymer solution in 43 wells with an overall injection rate of 32, 000 bbls/d. Polymer concentration is 3, 000 ppm, and well head injection pressure ranges from 90 barg to 130 barg. Considering the significant polymer volumes, a development with powder form has been selected with f 12 tons/day of nominal consumption. While requiring a larger footprint and slightly more CAPEX, it helped significantly reduce OPEX and transportation costs. In addition, specific equipment and technologies have been selected and implemented to prepare a highly viscous polymer solution, reduce maturation time and prevent any form of chemical or mechanical degradation. This paper will also present recent developments with the use of non-shearing choke valves to avoid significant drop in polymer viscosity. This project is now in operation for 18 months (April 2022) with more than 2, 8 million m3 of polymer solution injection. High injection reliability has been achieved (>98%) for all logistics, operations, and topside equipments. The Chengdao 22F EOR polymer flood pilot project drains an oil-bearing area of 3.21 square kilometers with an estimated initial oil in place (STOIIP) of 80.7 million bbls (12.04 million tons) of which 28.8 million bbls (4.3 million tons) are located within the central producing area. A total of 22 injection and 57 production wells have been drilled. It is predicted that cumulative oil production will reach 28.2 million bbls (4.21 million tons) after 15 years, with an estimated incremental oil recovery factor of 11.6% from polymer injection. Following polymer injection, the water cut start to drop from 90.2% down to 85.0% at few production wells and should continue to drop down to 80%. This paper will provide guidelines to help implementing successfully large-scale chemical EOR projects in an offshore environment. It will also present recent developments in non-shearing choke valves and specific equipment to optimize the injection-facilities’ overall footprint.
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Bie, Shuai, Yean Yang, Zhendong Jia, and Ruyan Ji. "Research on Environmental Performance-driven Facade Solar-Shading Optimization: A Case Study of the Office Building in Chengdu." In The 10th International Symposium on Project Management, China. Riverwood, NSW, Australia: Aussino Academic Publishing House, 2022. http://dx.doi.org/10.52202/065147-0245.

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Wang, Xia, Qingyuan Wang, and Xiaoyu Gan. "Analysis of urban sustainable development based on a dynamic study of the ecological footprint: a case study in Shuangliu County of Chengdu, China." In International Conference on Earth Science and Environmental Protection (ICESEP2013). Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/icesep130711.

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Xu, Haiyun, Feng Xu, Qing Zhao, Yang Cao, Jun Zhao, and Nan Hu. "Ecologic restoration design for urban river landscape degradation: a case of Yurunkax River, Hotan, Xinjiang, China." In 2013 International Conference on Biomedical Engineering and Environmental Engineering. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/icbeee130401.

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Liao, Mengyuan, Toshihiko Hojo, Guijun Xian, Yuqiu Yang, and Hiroyuki Hamada. "Environmental Degradation Behavior of Kenaf Fiber Mat Composite." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38248.

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Nowadays “eco-design” is becoming a philosophy to guide next generation of materials and products as global environmental issue produced by fossil fuels and resource overusing. With an industrial increasing interest in sustainable, eco-efficient and green material’s application, natural fiber in polymer composite is guided to develop rapidly. As well know that, natural fibers possess advantages over synthetic or manmade fibers due to its abundance, biodegradability, CO2 neutrality, excellent price/performance ratio and comparable specific strength properties. However, outdoor applications of natural fiber composite are still constrained and raising concerns in terms of their durability, including UV resistance, moisture resistance and extreme temperature withstand and dimensional stability. Continuing with previous research on kenaf non-woven reinforced unsaturated polyester composites three months degradation performance, in order to get a good knowledge of its degradation process/cycle in complicated outdoor environments, longer degradation periods up to 6 months and 12 months in this paper were added for further investigation and comparison. Initially, three sets of kenaf fiber mat composite samples were located in extreme cold temperature (Harbin), mild sea climate Kyoto (Japan), subtropical marine monsoon climate Shanghai (China) and tropical monsoon climate Zaria (Nigeria) respectively from the same starting time until predetermined ageing periods, afterwards weight change and mechanical behavior in terms of tensile, flexural, impact and fracture toughness were measured instrumentally for ageing effect discussion and comparison. As expected, the aged specimens in those different positions all showed the dropped mechanical properties with increasing ageing periods. Furthermore, the trend of degradation in various mechanical parameters was established, which demonstrated weight loss made more serious effect on aged sample’s mechanical properties’ reduction than water absorption behavior. In a word, dropped mechanical properties of the degraded composites accompanied with weight change behavior were clarified, in which degradation phenomenon of embrittled the matrix polymer, deteriorated reinforced fiber and interfacial properties were detected.
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Wang, Wenrui, Yu Cheng, Chunhui Zhang, Chunhua Li, and Junsheng Nie. "Study on Eco-Environmental Degradation and Sustainable Development in Madoi County, Yellow River Source Regions, China." In IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2008. http://dx.doi.org/10.1109/igarss.2008.4779804.

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Cheng Han and Hao Jing. "Notice of Retraction: Empirical analysis of the relationship between pollutant emissions and environmental degradation costs in China." In 2010 2nd Conference on Environmental Science and Information Application Technology (ESIAT 2010). IEEE, 2010. http://dx.doi.org/10.1109/esiat.2010.5568950.

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Liu, Guodong, Chengcheng Xia, and Wenli Zhu. "CONCENTRATIONS OF STABLE ISOTOPES AND THEIR RESPONSES TO MOISTURE AND ENVIRONMENTAL CHANGES FOR PRECIPITATION EVENTS DURING THE SUMMER MONSOON PERIOD IN CHENGDU, SOUTHWEST CHINA." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-331262.

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Liao, Mengyuan, Umaru Semo Ishiaku, Zainal Arifin Mohd Ishak, Guijun Xian, and Hiroyuki Hamada. "Environmental Durability of Natural Fiber Reinforced Unsaturated Polyester Composite." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63415.

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With an industrial increasing interest in sustainable, eco-efficient and green material’s application, natural fiber in polymer composite is guided to develop rapidly, especially kenaf nonwovens in making automotive interior trim parts with its comparative excellent strength and renewability. The objectives of this research are to investigate the environmental degradation behavior on the physical and mechanical properties of kenaf/unsaturated polyester nonwoven composites (KUNC) with special reference to the influence of different geographic natural climate ageing conditions. KUNC was prepared with needle-punched kenaf’s impregnation into unsaturated polyester resin assisted with vacuum oven following by hand lay-up molding. Natural environmental degradation was performed on KUNC by exposing the specimens to Kyoto(Japan), Shanghai(China) and Harbin(China) for a period of 3 months. Weight change and mechanical properties of degraded KUNCs in former three geographic positions in terms of tensile, flexural, impact and fracture toughness were measured instrumentally for ageing effect discussion and comparison. As expected, the aged specimens in those different positions all showed the dropped mechanical properties with weight increasing in varying degrees. Furthermore, the result of degradation level comparison among different positions revealed the positive correlation between increased weight percentages and dropped mechanical properties. In other words, dropped mechanical properties of the degraded composites with increasing weight were attributed to the effect of water, which deteriorates the interfacial properties of composites.
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Xie, Hai, Xuejiao Shao, and Han Liu. "Fatigue Benchmark Comparison Effort Between Code_Aster and CNNC/NPIC Software: Part 1." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93242.

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Abstract Fatigue is identified as a significant degradation mode that affects nuclear power plants world-wide. Several international codes and standards (ASME, RCC-M, JSME, etc...) offer rules to predict its damaging effect on the locations of the various components of an NPP. These rules, which ensure conservatism and safe operation, have grown in complexity over the years because they have integrated R&D results showing aggravating effects that were not included in the original analyses (such as Environmental Assisted Fatigue[1][2]) but also because an economically viable design of components has required optimization and refinement of mechanical assessment methods. CNNC/NPIC has been following carefully the recent evolutions in the fatigue rules and has today finalized an in-house software enabling the evaluation of fatigue per ASME and RCC-M rules, with integration of environmental effects. On the other hand, EDF has been developing since 1989 its own in-house FEA code baptizedCode_Aster that is included in the Salome-Meca mechanical package. Salome-Meca is open-access and can be used freely by international users. Within Code_Aster, the fatigue postprocessor offers a span of criteria (Dang Van, Stress Intensity, etc...) to pick and choose from and even offers the possibility to make up owns one fatigue criteria. It also offers the possibility to post-process fatigue according to the RCC-M rules (POST_RCCM operator). It has been recently updated to perform industrial calculations integrating environmental fatigue[2][3]. Both entities have come to agree that validating a fatigue computer code is not an easy task. On the one hand, the full validation using hand calculations would be a highly tedious effort, given the technicality and the multiple choices to make along the various steps of the fatigue analysis. On the other hand, there are no experiments today which enable to directly lead a benchmark calculation to validate fatigue numerical results. In consequence, an accepted way of validating a code is to perform a benchmark analysis against another industrial fatigue code. CNNC/NPIC and EDF R&D China have therefore launched an effort to benchmark their respective codes, with the final objective of progressing together towards safe structural assessment practical methods for their power plants components.
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Reports on the topic "Environmental degradation China Chengdu"

1

Shan, Wei, Ying Guo, and Chengcheng Zhang. Understanding the Geological Environmental Risks of Permafrost Degradation -Environmental and engineering geology in permafrost area in Northeast China. International Science Council, October 2020. http://dx.doi.org/10.24948/2020.06.

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Qiao, Baoyun, Xiaoqin Fan, Hanif Rahemtulla, Hans van Rijn, and Lina Li. Critical Issues for Fiscal Reform in the People’s Republic of China Part 1: Revenue and Expenditure Management. Asian Development Bank, December 2022. http://dx.doi.org/10.22617/wps220575-2.

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This paper examines revenue and expenditure management in the People’s Republic of China (PRC) and recommends ways to cut risk and strengthen the resilience of the fiscal system. The paper outlines the PRC’s fiscal reforms and the impact of COVID-19. It notes the financing gap facing subnational governments that play a key role in providing public investment in infrastructure. The authors discuss the PRC’s need to adjust its focus on economic growth to tackle its fiscal imbalance, improve the sustainability of local government finances, and address inequality and environmental degradation. This paper is the first of two on key aspects of fiscal reform in the PRC.
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Ahmad, Ehtisham, and Hans van Rijn. The Role of Local Governments in Driving High-Quality Growth in the People’s Republic of China. Asian Development Bank, December 2020. http://dx.doi.org/10.22617/wps200400-2.

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Over the past 25 years, the People’s Republic of China has gone through a long period of remarkable growth, lifting millions of people out of poverty. But this focus on growth has come at a cost, particularly in terms of environmental degradation, increasing socioeconomic and spatial inequalities, and the building up of fiscal liabilities at the local government level. Under the High-Quality Growth agenda, the People’s Republic of China seeks to rebalance the economy by addressing those negative side effects, and local governments will have a key role to play in the implementation of that agenda. In this paper, some critical aspects of the fiscal and institutional environment in which local governments operate are analyzed, and proposals are offered for the strengthening of local government finances.
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Fan, Li, and Veronica Mendizabal Joffre. The Gender Dimension of Sustainable Consumption and Production: A Microsurvey-Based Analysis of Gender Differences in Awareness, Attitudes, and Behaviors in the People’s Republic of China. Asian Development Bank, December 2020. http://dx.doi.org/10.22617/wps200401-2.

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Using microsurveys conducted in the People’s Republic of China over the past 2 decades, this paper explores the individual preferences among men and women toward sustainable consumption and production—the concept of doing more with less and decoupling economic growth from environmental degradation. The study finds that women exhibit greener living and working habits than men. However, women—regardless of education, rural–urban setting, or age—are impacted by time poverty, low political participation, limited awareness, gender norms, and, for younger and older women, financial limitations. To encourage and increase women’s capacity in shaping environmental solutions, economic and political gender gaps must be addressed and awareness on the impact of consumption needs to be strengthened.
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