重庆三峡库区水土流失敏感性调查研究  

Sensitivity Investigate of Soil and Water Loss in the Three Gorges Reservoir Region of Chongqing

作　　者：王巨[1] 谢世友[1,2] 戴国富[1] 

机构地区：[1]西南大学地理科学学院,重庆400715 [2]三峡库区生态环境教育部重点实验室,重庆400715

出　　处：《中国水土保持》2011年第8期39-42,69,共4页Soil and Water Conservation in China

基　　金：国家科技支撑计划项目(2006BAC01A16);重庆市自然科学基金重点项目(CSTC2009BA0002)

摘　　要：在RS、GIS技术支持下,兼顾坡面侵蚀和重力侵蚀,从DEM、坡度、降水、地表物质、地质灾害、土地利用等6个方面,对重庆三峡库区水土流失敏感性进行了单因子评价和综合评价。研究结果表明:重庆三峡库区水土流失以中、高度敏感性所占面积较大,分别占库区总面积的43.35%、36.0%;轻度敏感性面积占库区总面积的14.39%;不敏感、极度敏感区面积相对较小,仅分别占1.04%、5.23%。从区域分布来看,重庆三峡库区中、东部以中、高度敏感性为主,西部以轻、中度敏感性为主。The paper conducts single factor evaluation and comprehensive evaluation on the sensitivity of soil and water loss in the Three Gorges Reservoir region of Chongqing by the following six aspects of DEM,slope,precipitation,surface material,geological disaster and land use,with the support of RS and GIS technology,giving consideration to slope erosion and gravity erosion.The outcomes show that:a) the moderate and highly sensitive area of soil and water loss take large portions,making up 43.35% and 36.0% of the total reservoir region respectively;b) light sensitive area makes up 14.39% and;c) not sensitive and very sensitive area take small portions,making up 1.04% and 5.23% respectively.Viewing from regional distribution,the moderate and high sensitivity area are mainly in the center and east of the reservoir region and the moderate and light sensitivity area are mainly in the west of the reservoir region.

关 键 词：水土流失 敏感性 单因子评价 综合评价 重庆三峡库区 

分 类 号：S157[农业科学—土壤学]