基于土壤侵蚀综合指数的湖北省水土流失区域分异特征研究  

Study on the Regional Differentiation Characteristics of Soil Erosion in Hubei Province Based on the Soil Erosion Aggregative Index

作　　者：杨伟 李璐 郭文慧 马丽梅 

机构地区：[1]湖北省水利水电科学研究院,武汉430070 [2]湖北省水土保持工程技术研究中心,武汉430070

出　　处：《亚热带水土保持》2015年第1期1-5,共5页Subtropical Soil and Water Conservation

基　　金：湖北省水利前期工作"湖北省水土保持监测站点空间优化布局研究"与"湖北主要侵蚀区水土流失综合调控原理与治理模式研究"

摘　　要：本研究采用土壤侵蚀综合指数对湖北省水土流失区域分异特征进行了研究。结果表明,丹江口水库周边山地丘陵水质维护保土区和桐柏大别山山地丘陵水源涵养保土区是湖北省侵蚀最为严重的地区,而江汉平原及周边丘陵农田防护人居环境维护区和洞庭湖丘陵平原农田防护水质维护区则是湖北省水土流失程度最轻的地区。湖北省水土流失强度最高的县(市)多位于江汉平原与周边山地的过渡地带经济较发达的地区,说明湖北省不同区域自然条件的差异是水土流失区域分异产生的先决条件,但是不同地区农业生产和开发建设活动等人为活动强度的差异也对水土流失分异有重要影响。By using the soil erosion aggregative index, it was conducted the study on the regional differentiation char- acteristics of soil erosion in Hubei Province. The results showed that Water Quality Maintenance ＆ Soil Conservation District of Hilly Areas around the Danjiangkou Reservoir and the Soil and Water Conservation District of Hilly Areas of TongbaiDabie Mountain are the most serious soil erosion areas in Hubei Province, while the Farmland Protection Living Environment Maintenance District of Jianghan Plain and Hilly ＆ Plain Farmland Protection Water Resource Mainte- nance District of Dongting Lake are the areas with the least soil erosion. Most of the counties （cities） of HubeiProvince with most serious soil erosion problems are located at the economic developed area of the transition area between the Jianghan Plain and the surrounded hilly areas. It means that the difference of the natural conditions in the different dis- tricts of HubeiProvince is the precondition for the differentiation occurrence in the soil erosion areas. However, the strength difference of the human activities such as agriculture and construction has the important impact on the soil ero- sion differentiation.

关 键 词：水土流失 土壤侵蚀综合指数 区域分异 湖北省 

分 类 号：S157.1[农业科学—土壤学]