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

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.

發文機構：Department of Geography National Laboratory of Environmental Geochemistry

關鍵詞：spatialcorrelationanalysiskarstrockydesertificationlithologyDu'anYAOAUTONOMOUSCOUNTYspatial correlation analysis, karst rocky desertification, lithology, Du’an Yao Autonomous County

分類號： P931.5[天文地球—自然地理學]