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

作　　者：Na Li ChangZhen Yan JiaLi Xie JianXia Ma 

机构地区：[1]Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences

出　　处：《Research in Cold and Arid Regions》2018年第4期347-353,共7页寒旱区科学（英文版）

基　　金：funded by the China National Key Basic Research Programme (2013CB429901);the National Natural Science Foundation of China (General Programme: 41171400);Youth Innovation Promotion Association, CAS (2016158);the National Key Research and Development Program of China (2016YFC0503706)

摘　　要：Mu Us Sandy Land(MUSL) of China, as a typical eco-fragile and farming-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) since2000. 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.Mu Us Sandy Land(MUSL) of China, as a typical eco-fragile and farming-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) since2000. 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 

分 类 号：P[天文地球]