水土保持研究2012，Vol.19Issue(5)：167-170,4.
基于土壤侵蚀的贵阳市喀斯特地区基岩层间节理研究
Research on the Interlayer Joints of Bedrock in the Karst Region of Guiyang City Based on Soil Erosion
摘要
Abstract
The study on bedrock interlayer joint is the premise and basis to examine the soil erosion mechanism in Karst region. ArcGIS 9.3 software was used to classify, merge, and count the stratigraphy data of Guiyang City, and according to the classification standard of the type of the interlayer ioint, the interlayer ioint frequency with grade Ⅰ as the classification index was selected. On the basis of a certain scale geological map, the geological map was digitalized according to the statistical data, the interlayer joint frequency distribution map and the carbonate distribution map of Guiyang City were formed. The results showed that the dolomite area accounted for 36% of the total area in Guiyang Karst region, and the limestone area took up 43% of the total area in Karst region of Guiyang. The interlayer joint frequencies of bedrock were grade Ⅰ ,Ⅱ ,Ⅲ among which grade Ⅰ took up 15% of the total area, grade 11 accounted for 20%, and grade HI accounted for 44%. In limestone area of Guiyang, the distribution area order of interlayer joint frequency of different levels from high to low was grade Ⅲ grade Ⅰ 〉 gradeⅢ the order was grade Ⅲ 〉 gradeⅡ 〉grade in dolomite area. The high frequency of the interlayer joint frequency was readily formed in the limestone area of Guiyang City.关键词
土壤侵蚀/层间节理/喀斯特地区/贵阳市Key words
soil erosion/interlayer joints/Karst region/Guiyang City分类
农业科技引用本文复制引用
袁靓,高华端,张旭贤,韦海霞..基于土壤侵蚀的贵阳市喀斯特地区基岩层间节理研究[J].水土保持研究,2012,19(5):167-170,4.基金项目
国家自然科学基金“喀斯特坡耕地产流产沙特征及过程研究”（41061029）作 （）
