黄河中游河龙区间潜在土壤侵蚀研究  

Research on Potential Soil Erosion in the He-Long Region of the Middle Reaches of the Yellow River

作　　者：谭诗[1,2] 刘建祥[3] 张科[4] 王志强[2] 

机构地区：[1]湖南第一师范学院,中国长沙410205 [2]北京师范大学地理学与遥感科学学院,中国北京100875 [3]水利部松辽水利委员会松辽流域水土保持监测中心站,中国长春130021 [4]湖南省电化教育馆,中国长沙410005

出　　处：《湖南师范大学自然科学学报》2014年第3期1-6,共6页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金资助项目(40471082);湖南第一师范学院科研资助项目(XYS11N07)

摘　　要：利用CSLE模型计算并分析了在无水土保持工程和耕作措施条件下黄河中游河龙区间土壤侵蚀各因子特征值以及2011年的潜在土壤侵蚀情况.结果表明:降雨侵蚀力因子和坡度坡长因子的分布与潜在土壤侵蚀的分布呈一定的相反趋势,土壤可蚀性因子和植被覆盖与生物措施因子则表现出一致性.2011年潜在土壤侵蚀模数为2 600.1 t/(hm2·a),潜在土壤侵蚀面积占整个区间总面积的50.45%,并且以强烈侵蚀为主,造成的水土流失较为严重.Based on the CSLE model,the characteristic of each factor of soil erosion and potential soil erosion in the He-Long region of the middle reaches of the Yellow River without engineering and tillage conservation measures in 2011 were calculated.The results indicated that the geographic distribution of rainfall erosivity,slope gradient and slope length revealed contrary trends with potential soil erosion,while soil erodibility,vegetation cover and biological measures showed the consistency trend with potential soil erosion.Potential soil erosion modulus of the He-Long region was 2 600.1 t /（hm^2·a） in 2011.Area of potential soil erosion region covered 50.45% of the whole region and intense erosion mainly occurred in potential soil erosion region,causing a high level soil and water loss.

关 键 词：潜在 土壤侵蚀 河龙区间 

分 类 号：S157[农业科学—土壤学]