江西农业大学学报2011，Vol.33Issue(1)：183-188,6.
基于GIS和USLE的朱溪河小流域土壤侵蚀经济损失评估
Estimation of the Economic Losses Caused by Soil Erosion in Zhuxi Small Watershed by GIS and USLE
摘要
Abstract
Based on SPOT remote sensing data of Zhuxi small watershed in 2007, the watershed soil erosion quantities were worked out by using the geographic information system (GIS) and universal soil loss equation (USLE), and according to tthe basic principles and methods of environment economics, the economic losses were estimated which included soil nutrient loss, water loss ,land loss, sediment retention and accumulation etc.The results show that the soil erosion amounts to 42 893.96 t in the studied watershed ,and the soil erosion modulus is 954.047 t/( km2 · a).The total cost of soil erosion is 9 575 070 yuan, which means that the annual economic losses caused by erosion in the watershed is 212 967 yuan/km2 ,corresponding to 27.33％ of the total local agricultural and sideline output.The research result indicates that soil erosion causes directly the decline of land productivity in the Zhuxi watershed and clogs the agricultural development.关键词
USLE/土壤侵蚀/经济损失/朱溪河/小流域分类
农业科技引用本文复制引用
林惠花,武国胜,朱鹤健,戴文远..基于GIS和USLE的朱溪河小流域土壤侵蚀经济损失评估[J].江西农业大学学报,2011,33(1):183-188,6.基金项目
国家自然科学基金项目(40871141)和福建省自然科学基金项目(2060203) （40871141）
