文档介绍：江西农业大学学报 2011,33( 1) : 0183 - 0188
Acta AGriculturae Universitatis JianGxiensis
http: / / xuebao. jxau. edu. cn
E - mail: ndxb7775@ sina. com
基于 GIS 和 USLE 的朱溪河小流域
土壤侵蚀经济损失评估
林惠花,武国胜,朱鹤健,戴文远
( 福建师范大学地理科学学院,福建福州 350007 )
摘要: 以朱溪河小流域 2007 年遥感数据为基础,在 GIS 技术支持下,利用 USLE 模型计算该流域土壤侵蚀量,并
运用环境经济学理论,计算流域土壤侵蚀造成的养分损失( N、P、K、有机质含量) 、水分损失、土地损失、泥沙滞
留损失及泥沙淤积损失等 5 种经济损失总值。结果显示: 2007 年朱溪河小流域土壤侵蚀总量为 42 893. 96 t,
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域内土地生产力下降和农业发展受阻。
关键词: USLE; 土壤侵蚀; 经济损失; 朱溪河; 小流域
中图分类号: S157. 1
文献标志码: A
文章编号: 1000 - 2286( 2011) 01 - 0183 - 06
Estimation of the Economic Losses Caused by Soil Erosion in
Zhuxi Small Watershed by GIS and USLE
LIN Hui-hua,WU Guo-shenG,ZHU He-jian,DAI Wen-yuan
( ColleGe of GeoGraphical Sciences,Fujian Normal Univerisity,Fuzhou 350007,China)
Abstract: Based on SPOT remote sensinG data of Zhuxi small watershed in 2007,the watershed soil ero-
sion quantities were worked out by usinG the GeoGraphic information system ( GIS) and universal soil loss equa-
tion ( USLE) ,and accordinG to tthe basic principles and methods of environment economics,the economic los-
ses 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 to-
tal local aGricultural and sideline output . The research result indicates that soil erosion causes directly the de-
cline of land productivity in the Zhuxi watershed and cloGs the aGricultural development .
Key words: USLE; soil erosion; economic loss; Zhuxi River; small watershed
土壤侵蚀是当前世界性的重大环境问题。货币化度量土壤侵蚀造成的损失是各级政府制定水土保
持政策时迫切关心的问题,更是当前以土壤整治为主体的生态环境建设和实现国民经济绿色核算迫切
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。目前土壤侵蚀经济损失的评估已成为国内外研究的热点。在国外,Pretty J
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收稿日期: 2010 - 09 - 09