基于沙化土地变化指数的中国北方沙化土地年度动态监测分析
Land desertification annual dynamic monitoring in northern China based on land desertification change index
[目的]土地沙化问题是可持续发展目标 15.3 土地退化零增长关注的重点问题之一。传统实地踏查的土地沙化评估方式时间周期过长,往往不能够反映土地沙漠化真实的情况,目前大尺度高分辨率的土地沙化年度动态监测尚且处于空白阶段,给治沙政策制定带来了很大的困难。本研究旨在基于遥感技术手段与地球大数据云平台,对中国北方区域进行了土地沙化年度变化监测评估,为目标 15.3 做出贡献。[方法]本研究基于Google earth engine云平台对 2019-2…查看全部>>
[Objective]The land desertification is the main concerned of the Sustainable Development Goal 15.3 land degradation neutrality.The traditional land desertification assessment methods for field surveys carry out long time period and often fails to show true situation of land desertification in time.At present,large-scale,high-spatial resolution land desertification annual dynamic monitoring is still need to be developed,which brings great difficulties to form…查看全部>>
评论