Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985-2013)
文献类型：期刊论文
| 作者 | Jin, Yunxiang; Li, Jinya; Xu, Bin; Yang, Xiuchun; Qin, Zhihao; Guo, Jian; Zhao, Lina; Zhao, Fen |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017-06-07 |
| 卷号 | 7期号:12页码:- |
| 关键词 | Polycyclic Aromatic Hydrocarbons Total Suspended Particles Source Himalayas |
| 英文摘要 | Since rural reforms in the 1980s, both the state and local governments of China have devoted great efforts to combating desertification through a number of eco-environmental restoration campaigns, resulting in burgeoning contention at all levels of government and sparking public concern. Monitoring and accurately assessing the statuses and trends of grassland desertification are important for developing effective restoration strategies. The Horqin Sandy Land (HSL), a very typical desertified grassland (DG) with better hydrothermal conditions among sandy lands in north China, was recently selected (1985-2013) to assess the spatiotemporal dynamic performances of grassland desertification before and after implementing restoration projects. Landsat images (TM/ETM+/OLI), field investigations and expert review were integrated to form a classification scheme for the HSL. Then, spectral mixture analysis and the decision-tree method were used to extract bare-sand ratios and vegetation cover fraction dynamics. A favourable phenomenon of DG was seen to be reversed in an accelerated pace during 2001-2013, despite challenge from both climatic and anthropogenic factors. However, overexploitation of grassland (especially for farming) and ground water for irrigation has led to remarkable decreases in the ground water level in recent decades, which should be highly concerning regarding the formulation of restoration campaigns in the sandy land. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39036]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jin, Yunxiang,Li, Jinya,Xu, Bin,et al. Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985-2013)[J]. SCIENTIFIC REPORTS,2017,7(12):-. |
| APA | Jin, Yunxiang.,Li, Jinya.,Xu, Bin.,Yang, Xiuchun.,Qin, Zhihao.,...&Zhao, Fen.(2017).Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985-2013).SCIENTIFIC REPORTS,7(12),-. |
| MLA | Jin, Yunxiang,et al."Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985-2013)".SCIENTIFIC REPORTS 7.12(2017):-. |
入库方式： OAI收割
来源：生态环境研究中心
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