贵州喀斯特地区坡面土壤侵蚀机理研究  

Study on Mechanism of Slope Soil Erosion in Karst Region of Guizhou Province

作　　者：李瑞 岳坤前 

机构地区：[1]贵州省水土保持监测站,贵阳550002 [2]贵州范大学中国南方喀斯特研究院,贵阳550001

出　　处：《科学技术与工程》2015年第7期150-153,共4页Science Technology and Engineering

基　　金：水利部公益性行业科研专项经费项目(201401050);贵州水利科技项目(KT201202)资助

摘　　要：贵州省喀斯特地区4种可控土壤侵蚀因子进行了探讨。研究表明,坡面土壤侵蚀随着坡度和坡长的增加而加剧,随盖度的增加而减轻;土壤侵蚀与种植因子P的关系研究表面,天然林、水保林及耕地撂荒等措施能够起到较好的坡面水土流失防治效果;而就坡耕地而言,较顺坡耕作,采取横坡耕作可有效防治水土流失。4 controlled soil erosion factors were discussed in Karst area of Guizhou Province. Research showed that the slope soil erosion aggravated with the slope and slope length increased, and which reduced with the coverage decreased. The study on the relationship between soil erosion and planting factor P showed that the control effect of slope soil erosion of natural forest, water ＆ soil conservation forest and abandoned land was better. And the study also showed that the soil erosion control effect of cross slope cultivation was better than downslope tillage for the slope farmland.

关 键 词：喀斯特地区 坡面 土壤侵蚀机理 可控土壤侵蚀因子 

分 类 号：S157.9[农业科学—土壤学] G30[农业科学—农业基础科学]