中国科学院机构知识库网格系统: 检索

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	Farmland degradation caused by radial diffusion of CO2 leakage from carbon capture and storage 期刊论文 OAI收割 JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 255, 页码: 8 作者: Ma, Xin; Zhang, Xueyan; Tian, Di \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2020/05/19 Carbon capture and storage CO2 leakage Spring wheat Farmland degradation Spatial threshold
	Farmland degradation caused by radial diffusion of CO2 leakage from carbon capture and storage 期刊论文 OAI收割 JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 255, 页码: 8 作者: Ma, Xin; Zhang, Xueyan; Tian, Di \| 收藏 \| 浏览/下载：16/0 \| 提交时间：2020/05/19 Carbon capture and storage CO2 leakage Spring wheat Farmland degradation Spatial threshold
	Spatiotemporal Degradation of Abandoned Farmland and Associated Eco-Environmental Risks in the High Mountains of the Nepalese Himalayas 期刊论文 OAI收割 LAND, 2020, 卷号: 9, 期号: 1, 页码: 1 作者: Chaudhary, Suresh; Wang, Yukuan; Dixit, Amod Mani; Khanal, Narendra Raj; Xu, Pei \| 收藏 \| 浏览/下载：60/0 \| 提交时间：2020/03/26 farmland abandonment spatiotemporal degradation eco-environmental risk regression model mountain region Nepal
	Valley reshaping and damming induce water table rise and soil salinization on the Chinese Loess Plateau 期刊论文 OAI收割 GEODERMA, 2019, 卷号: 339, 页码: 115-125 作者: Jin, Z (Jin, Zhao); Guo, L (Guo, Li); Wang, YQ (Wang, Yunqiang); Yu, YL (Yu, Yunlong); Lin, H (Lin, Henry) \| 收藏 \| 浏览/下载：60/0 \| 提交时间：2019/03/01 Farmland creation Gully land consolidation Land degradation Land management Soil quality
	Social Impact of Farmland Abandonment and Its Eco-Environmental Vulnerability in the High Mountain Region of Nepal: A Case Study of Dordi River Basin 期刊论文 OAI收割 SUSTAINABILITY, 2018, 卷号: 10, 期号: 7, 页码: 19 作者: Chaudhary, Suresh; Wang, Yukuan; Khanal, Narendra Raj; Xu, Pei; Fu, Bin \| 收藏 \| 浏览/下载：49/0 \| 提交时间：2018/09/29 farmland abandonment social practices farmland degradation mountain region Nepal
	Balancing straw returning and chemical fertilizers in China: Role of straw nutrient resources 期刊论文 OAI收割 RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2018, 卷号: 81, 页码: 2695-2702 作者: Yin, Huajun; Zhao, Wenqiang; Li, Ting; Cheng, Xinying; Liu, Qing \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2020/03/26 Straw nutrient resource Chemical fertilizer Crop yield Farmland degradation Environmental pollution Straw management policy
	Land use dynamics and landscape change pattern in Hetao irrigation district, Inner Mongolia, China 会议论文 OAI收割 6th International Symposium on Digital Earth: Data Processing and Applications, Beijing, China, September 9, 2009 - September 12,2009 Zhang, Yinhui; Luo, Yi; Zhao, Wenwu 收藏 \| 浏览/下载：27/0 \| 提交时间：2014/12/07 This study analyzed spatial and temporal changes in land use in an irrigation district covering an area of 1.7 million ha in Northern China by GIS analyses and also investigated changes in landscape pattern using the landscape structure analysis program FRAGSTATS over the study period from 1986 to 2000. The decreases in farmland and the increases in grassland area mainly resulted from the policy of grain for green and converting slope farmland into pasture from China government. In spite of the efforts to conserve the fragile ecosystem the land degradation including soil salinization and grassland degradation was spreading rapidly. The area of alkali-saline land increased by 22493 ha and about 50555 ha of dense grassland degraded into mid-density grassland. In terms of landscape fragmentation both farmland and dense grassland showed the tendency of increased fragmentation. Both adverse natural conditions and human activities are responsible for the land degradation expansion in Hetao irrigation district but the root causes are increasing population pressure and irrational human activities such as flooding irrigation method and over-grazing. To prevent land degradation from spreading population control and improvement of the management are prerequisite approaches. 2010 SPIE.