广东水利水电Issue(12)：127-132,144,7.
基于RUSLE模型的广东省大顶山小流域土壤侵蚀特征研究
Study on Soil Erosion Characteristics of Dadingshan Small Watershed in Guangdong Province Based on the RUSLE Model
WANG Lusong 1HUANG Shaoqiang 2XU Jinghua 1CHEN Sanxiong2
作者信息
- 1. Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China
- 2. Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China
- 折叠
摘要
Abstract
To explore the soil erosion characteristics of the Dadingshan small watershed in Guangdong Province,the Revised Universal Soil Loss Equation(RUSLE)model was employed,combined with remote sensing and geographic information system technologies,to analyze the current status,spatial distribution,and main influencing factors of soil erosion in the small watershed.The results showed that:①The area of soil erosion below the mild level in the Dadingshan small watershed was 17.34 km2,accounting for 88.02%of the total watershed area.The area of moderate and above erosion in the watershed accounted for 11.98%of the total watershed area,and its soil erosion amount accounted for 75.7%of the total annual soil erosion amount in the small watershed.The potential soil loss values ranged from 0 to 193,316 t/km2/a,with an average value of 79981±49170 t/km2/a.②Micro-erosion was mainly distributed in areas with slopes less than 8°,while areas with slopes of 8°～15° and 15°～25° experienced mild erosion.Areas with slopes of 25°～35° and greater than 35° experienced moderate erosion,with erosion amount greater than 15° accounting for 92.25%of the total erosion amount in the watershed.③The soil erosion modulus in the watershed was significantly influenced by vegetation changes.Areas of eucalyptus plantation with vegetation coverage less than 0.3 were the main sources of sediment in the watershed.关键词
RUSLE模型/土壤侵蚀/坡度/植被/小流域Key words
RUSLE model/soil erosion/slope/vegetation/small watershed分类
农业科技引用本文复制引用
WANG Lusong,HUANG Shaoqiang,XU Jinghua,CHEN Sanxiong..基于RUSLE模型的广东省大顶山小流域土壤侵蚀特征研究[J].广东水利水电,2025,(12):127-132,144,7.
