沙化土地遥感监测研究现状

Studies on Remote Sensing Monitoring of Sandification

沙化土地遥感监测是采集沙化土地现状及其动态变化的重要技术手段,能够为国家防沙治沙提供重要的科学依据。本文从遥感信息源、光谱特征分析、沙化因子提取、沙化土地分类和动态变化分析等方面总结国内外的研究现状,在此基础上探讨存在的问题及发展方向。

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.