干旱区生态安全与可持续发展服务平台

Cultivated-land change in Mu Us Sandy Land of China before and after the first-stage grain-for-green policy

Li, Na ， Yan, ChangZhen ， Xie, JiaLi ， Ma, JianXia

2018-08-01 null null 10(卷), null(期), (null页)

Mu Us Sandy Land (MUSL) of China, as a typical eco-fragile and fanning-pastoral transitional region, shows great vulnerability to disturbances from cultivation activity. In this region, the conflict between cultivation activity and environmental protection has not attracted great importance until the implementation of China's Grain-for-Green Policy (CGGP) since 2000. Here, using Landsat5 TM/Landsat7 ETM+ images from 1990, 2000, and 2010, we monitor the cultivation activity and land-use/cover changes (LUCC) resulting from cultivation activity in the MUSL region. Based on the data from images, we developed a series of databases of cultivated activity-induced LUCC and use them to discuss comparatively the spatio-temporal evolution trends of cultivation activity before and after CGGP implementation. These results provide evidence for managers to evaluate the implementation effectiveness of governmental policy and the influence of cultivation activity on the ecological environment of the MUSL region.

关键词

Mu Us Sandy Land China's grain-for-green policy cultivated land land-use/cover change landsat

Cultivated-land change in Mu Us Sandy Land of China before and after the first-stage grain-for-green policy

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