基于遥感信息的沙漠化灾害程度定量提取研究  

Study on Quantitative Extraction of Desertification Degree Information from Remote Sensing Information

作　　者：牛宝茹[1] 

机构地区：[1]中煤航测遥感局遥感应用研究院,陕西西安710054

出　　处：《灾害学》2005年第1期18-21,共4页Journal of Catastrophology

基　　金：973重大基础研究前期研究专项-干旱半干旱地区的环境动力机制重大理论基础研究(2003CCC01500);世界银行贷款项目-塔里木河流域生态环境遥感监测系统

摘　　要：在分析沙漠化等级遥感信息提取现状的基础上,根据遥感手段沙漠化等级综合标志,提出了植被盖度分割和缨帽变换分割两种沙漠化程度遥感信息提取方法,并将其与传统的监督分类进行了比较。认为监督分类精度最低,植被盖度分割和缨帽变换分割更适用于生态环境动态监测,而在水体分布区缨帽变换分割较植被盖度分割适用。Based on analysis of status quo of desertification information extraction from remote sensing information, the method of vegetation-cover segmentation and the method of the tussled-cap-transform segmentation are presented for desertification information extraction according to desert grade integrated sign of the remote sensing. The methods are also compared with traditional supervisory classification methods. It shows that the precision of supervisory classification method is the lowest, the methods of the vegetation-cover segmentation and tussled-cap-transform segmentation are suitable for the ecological environment monitoring, but the method of the tussled-cap-transform segmentation is more suitable for the water area. 

关 键 词：沙漠化 遥感 信息提取 植被盖度 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P941.73[自动化与计算机技术—控制科学与工程]