关键词: 沙化土地, 遥感监测, 研究现状, 发展方向

Abstract:

Remote sensing monitoring of sandification is a key technique to collect the status and dynamics of sandy land, providing scientific bases for the national sandification control. The paper introduces information sources, spectral characteristics, sandification information extraction, sandification classification and dynamic analyses, summarizes the study progresses, and discusses the problems and trends.

Key words: sandy land, remote sensing monitoring, study progress, trend