NDVI像元二分模型在喀斯特地区提取石漠化中的应用

Application of NDVI Pixel Binary Model in Extraction of Rocky Desertification in Karst Areas

石漠化现象是喀斯特地区最为严重的生态环境问题,越来越受到重视。此次实验以甘洛县为研究对象,运用NDVI像元二分模型结合3S手段,提取出了石漠化区域,并进行了等级划分。根据实地调查结果表明,该方法适用于喀斯特地区石漠化信息的提取,为石漠化研究及应对措施的制定提供理论依据。

The rocky desertification is becoming one of the most serious menaces in the eco-environment vulnerable Karst areas,and to be thought highly of. Using the NDVI binary model and technology of GPS,GIS,RS, this paper extracted the information of rocky desertification, and classified it. According to the data and materials, this model is available to extract the information of rocky desertification. It will make a contribution to the study of rocky desertification and the mature to solving the problem.