中国岩溶2016，Vol.35Issue(5)：594-601,8.DOI:10.11932/karst20160516
基于RS和GIS的南汀河流域石漠化评价
Rocky desertification evaluation based on RS and GIS in Nanting river basin
摘要
Abstract
In this paper,remote sensing and geography information system technologies are applied on ETM,DEM and geological lithology data of nanting river basin to extract evaluation factorsto create the evaluation index of rocky desertification,and to evaluate the intensity of rocky desertification.The intensity grading of rocky desertification in karst area was derived by using spatial overlay analysis and statistical analysis methods.The relationship between land use data and rocky desertification information and land use/land cover were used to analyze the impact of land use patterns on rocky desertification of Nanting river basin.The results indicated that,(1) the sorting of karst rocky desertification intensity by area is,medium＞light＞potential＞strong＞no rocky＞extremely strong rocky desertification.(2) The strong and extremely strong rocky desertification areas are mainly distributed in land cover types of cultivated land and sparse woodland.In addition to bare rock ratio,vegetation,slope,lithology and other main factors,land use by humanbeing also plays an important role in aggravating karst rocky desertification.关键词
岩溶石漠化/遥感评价因子/程度评价/南汀河流域Key words
karst rocky desertification/remote sensing evaluation factors/intensity evaluation/Nanting river basin分类
天文与地球科学引用本文复制引用
苏旺德,史正涛,刘钢..基于RS和GIS的南汀河流域石漠化评价[J].中国岩溶,2016,35(5):594-601,8.基金项目
云南省社会发展科技项目(2012CA015),(0540020640216002) （2012CA015）
