农业科学研究2024，Vol.45Issue(2)：64-70,96,8.
桂西北岩溶区不同石漠化强度土壤颗粒分形特征研究
Study on Fractal Characteristics of Soil Particles with Different Rocky Desertification Intensity in Karst Area of Northwest Guangxi
摘要
Abstract
The karst area of northwest Guangxi is a representative subtropical karst region in China,severely affected by rocky desertification.To investigate the fractal characteristics of soil particles under different rocky desertification intensities and their relationship with soil physical and chemical properties,soils from three typical karst areas-Chengjiang Township in Du'an Yao Autonomous County,Baima Township in Dahua Yao Autonomous County,and Natao Township in Bama Yao Autonomous County-were selected for analysis.The study examined rocky desertification intensity,soil physical and chemical properties,changes in soil particle fractal dimensions,and their interrelationships.A significant negative correlation was found between the fractal dimension of soil particles and the intensity of rocky desertification(P<0.05).The fractal dimension of soil particles showed significant correlations with soil physical indicators such as particle size distribution,bulk density,water content,and total porosity,as well as chemical indicators such as total nitrogen,total phosphorus,total potassium,and organic matter content(P<0.05).These findings indicate that the fractal dimension of soil particles accurately reflects the intensity of rocky desertification in the karst area of northwest Guangxi,providing a new method for quantitatively characterizing rocky desertification soil quality and guiding soil improvement and ecological restoration in karst regions of China.关键词
桂西北岩溶区/土壤理化性质/土壤颗粒分形维数/分形特征Key words
karst region in northwest Guangxi/soil physical and chemical properties/fractal dimension of soil particles/fractal characteristics分类
农业科技引用本文复制引用
邹小阳,周旺,孙文俊,肖克飚,刘涛..桂西北岩溶区不同石漠化强度土壤颗粒分形特征研究[J].农业科学研究,2024,45(2):64-70,96,8.基金项目
广西新发展集团(岩溶区绿色公路修建)院士工作站能力建设项目(桂科AD17129047) （岩溶区绿色公路修建）
