安徽农业科学2009，Vol.37Issue(20)：9615-9617,3.
黔中高原区小流域石漠化坡度分析
Slope Analysis of Rocky Desertification for the Small Catchments in the Center Plateau of Guizhou Province
摘要
Abstract
Two catchments were selected as the objects of study on homogenous limestone and dolomite area in the center plateau of Guizhou Province.With TM data,the information of slope and rocky desertification were analyzed based on GIS.The result showed that rocky desertification of homogenous limestone region was more serious as a whole.But its intense rocky desertification was less than homogenous dolomite one.In homogenous limestone region light and moderate rocky desertifications focus on 15 to 35 degree slope,while intense rocky desertification focuses on above 25 degree slope.By contrast,the proportion of intense rocky desertification was higher in homogenous limestone region,and there was morehidden trouble in it through the distribution of potential rocky desertification shows.Human influences played an important role in the development of rocky desertification in catchments of homogenous dolomite regions.It was especially true for rocky desertification with a low slope.关键词
连续性灰岩/连续性白云岩/喀斯特/石漠化治理Key words
Homogenous limestone/Homogenous dolomite/Karst/Administration of rocky desertification分类
天文与地球科学引用本文复制引用
谭秋..黔中高原区小流域石漠化坡度分析[J].安徽农业科学,2009,37(20):9615-9617,3.基金项目
国家重点基础研究发展计划项目(2006CB403201) （2006CB403201）
贵州省科学技术基金(黔科合J字[2008]2012号). （黔科合J字[2008]2012号）
