不同土地利用方式对丘陵山区坡面侵蚀产沙量的影响  

The slope erosion sediment yield under different land use types in hilly area of Anhui province

作　　者：陈众[1] 田丰[2] 董俊[3] 

机构地区：[1]安徽大学资源与环境工程学院,合肥230601 [2]安徽省环境监测中心站,合肥230061 [3]中科院合肥物质科学研究院,合肥230031

出　　处：《干旱区资源与环境》2015年第1期186-191,共6页Journal of Arid Land Resources and Environment

基　　金：安徽大学优秀青年科学研究基金(2009QN016B)资助

摘　　要：选取安徽省霍山县大官山的典型研究区域,通过径流试验,分析了近20年6种典型土地利用方式的侵蚀产沙特性及影响因素。结果表明:不同土地利用方式对坡面侵蚀产沙量的影响依次是顺坡耕作区>标准小区>经济林区>牧草区>乔木用材林区>梯田小区。在不同土地利用方式下,防止土壤流失最有效的是梯田,而顺坡耕作区水土流失量最大。坡面侵蚀产沙量与降雨侵蚀力表现为幂函数关系,且相关性达到了极显著水平。The research area is located at Daguan hill in Huoshan county,Anhui province. Through the runoff experiment,the characteristics of erosion sediment yield and its influencing factors were analysed by rainfall data and soil erosion data under 6 kinds of typical land use types in nearly 20 years. The results indicated that： The influences of the different land use types on slope erosion sediment yield were given as following descending order： the slope farming area the standard area the commercial forest area the grass area the timber forest area the terrace cultivation area. In different land use types,the terrace cultivation area was the most effective to prevent soil erosion,while the slope farming area had the largest amount of soil erosion. The correlation between slope erosion sediment yield and rainfall erosivity expressed as power function and the correlation reached extremely significant level.

关 键 词：丘陵山区 土地利用方式 坡面侵蚀产沙特征 降雨强度 影响 

分 类 号：S157[农业科学—土壤学]