土壤侵蚀模数的移置与修正  

Modification and Migration of Soil Erosion Modulus

作　　者：胡新锁[1] 岳树堂 乔光建 

机构地区：[1]河北省邯郸水文水资源勘测局,河北邯郸056001 [2]河北省水文水资源勘测局,石家庄050031 [3]河北省邢台水文水资源勘测局,河北邢台054000

出　　处：《南水北调与水利科技》2009年第4期89-91,103,共4页South-to-North Water Transfers and Water Science & Technology

摘　　要：在小流域水利工程设计计算中,普遍存在的问题是小流域上缺乏实测泥沙资料的情况。现介绍一种无资料地区水利工程设计泥沙侵蚀量计算方法,在移用泥沙资料时,首先对设计流域和参证流域的土壤性质、地形和植被等土壤侵蚀因子进行对比,对土壤侵蚀模数影响较大的因子进行修正。使移用的泥沙资料更符合设计流域的实际情况,可提高小流域设计中泥沙计算的精度,保证水利工程设计的质量。In design and calculation of hydro-project for small watershed, the actual data shortage of sediment drift survey is often a key problem. The article introduces a new method of deciding soil erosion value for local hydro-project design in the area without actual data. In applying other sediment data from other watersheds, the erosion factors such as soil characteristic, topography and vegetation is compared with each other, and the main factors that obviously affect soil erosion modulus should be modified so that sediment reference data could fit the actual condition of the designed watershed well. It can improve the sediment calculation precision of small watershed design and ensure the quality of hydro project design.

关 键 词：水利工程设计 资料移用 土壤侵蚀模数 影响因素系数 

分 类 号：S157[农业科学—土壤学]