SPATIAL CORRELATION ANALYSIS BETWEEN KARST ROCKY DESERTIFICATION AND LITHOLOGY IN DU'AN YAO AUTONOMOUS COUNTY IN GUANGXI  

作　　者：HU Baoqing JIANG Shufang LIAO Chimei HUANG Qiuyan ZHOU Dequan 

机构地区：[1]Department of Geography, Guangxi Teachers Education University,Nanning,GX530001,China [2]National Laboratory of Environmental Geochemistry, Geochemistry Institute of Chinese Academy of Science,Guiyang,GZ550002,China Department of Geography, Guangxi Teachers Education University,Nanning,GX530001,China Department of Geography, Guangxi Teachers Education University,Nanning,GX530001,China Department of Geography, Guangxi Teachers Education University,Nanning,GX530001,China Department of Resources and Environmental Sciences, Guizhou Normal University, Guiyang,GZ5 50001,China

出　　处：《Geotectonica et Metallogenia》2004年第2期157-167,共11页大地构造与成矿学（英文版）

基　　金：supported jointly by National Natural Science Foundation of China(Grant Nos.40161004 and 40361002);Guangxi Natural Science Foundation(Guikeji Grant No.0236046 and Guikezi Grant No.0342001-2);the Resource and Environmental Information System Laboratory project of Guangxi Teachers Education University-Guangxi Science and Technological Innovation Unit.

摘　　要：Du’an Yao Autonomous County is a typical area for the distribution of karst rocky desertification in Guangxi. The indices for the grades of rocky desertification are selected according to the scientific meaning of karst rocky desertification and after the interpretative symbol system of rocky desertification. RS images are established by the landscape characteristics of Du’an karst and its TM image. Relying on RS & GIS means and taking land use map as base map, this paper conducts synthetic analysis on the 1999a TM image (126-043) and the correlation data involving landform, soil, geological map and GPS—database and photo on the spot, and brings forth a map showing the Du’an rocky desertification grades and a digital lithology map. As can be viewed from spatial correlation, the inherent connection is also illuminated between the various levels of rocky desertification and the carbonate lithology.Du’an Yao Autonomous County is a typical area for the distribution of karst rocky desertification in Guangxi. The indices for the grades of rocky desertification are selected according to the scientific meaning of karst rocky desertification and after the interpretative symbol system of rocky desertification. RS images are established by the landscape characteristics of Du’an karst and its TM image. Relying on RS & GIS means and taking land use map as base map, this paper conducts synthetic analysis on the 1999a TM image (126-043) and the correlation data involving landform, soil, geological map and GPS—database and photo on the spot, and brings forth a map showing the Du’an rocky desertification grades and a digital lithology map. As can be viewed from spatial correlation, the inherent connection is also illuminated between the various levels of rocky desertification and the carbonate lithology.

关 键 词：spatial correlation analysis  karst rocky desertification  lithology  Du'an YAO AUTONOMOUS COUNTY 

分 类 号：P931.5[天文地球—自然地理学]