Wind Tunnel Study of Multiple Factors Affecting Wind Erosion from Cropland in Agro-pastoral Area of Inner Mongolia,China

作     者：HE Ji-jun CAI Qiang-guo CAO Wen-qing 

作者机构：State Key Laboratory Incubation Base of Urban Environmental Processes and Digital SimulationElementary Educational CollegeCapital Normal University State Key Laboratory of Soil Erosion and Dryland Farming on the Loess PlateauInstitute of Water and Soil ConservationChinese Academy of Sciences and Ministry of Water Resources Key Laboratory of Water Cycle and Related Land Surface ProcessesInstitute of Geographical Sciences and Natural Resources ResearchChinese Academy of Sciences 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2013年第10卷第1期

页      面：68-74页

核心收录：

学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程] 

基　　金：supported by Key Program of National Natural Science Foundation of China(Grant No. 41130744) China National Natural Science Foundation (Grant No. 40971165) State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau open Foundation(Grant No. 10501-1220) 

主　　题：Agro pastoral area Soil wind erosion Critical slope Wind tunnel experiment 

摘      要：In this paper,the process of wind erosion on two kinds of soil from the agro-pastoral area of Inner Mongolia are studied using wind tunnel experiments,considering the wind speed,blown angle of wind and soil moisture *** results showed that the modulus of soil wind erosion increases with an increase of wind *** the wind speed exceeds a critical value,the soil wind erosion suddenly *** critical speed for both kinds of soil is within the range of 7-8m·*** a constant wind speed,the rate of soil wind erosion changes from increasing to falling at a critical soil *** critical slope of loam soil and sandy loam soil is 20° and 10°,*** moisture content has a significant effect on wind *** wind erosion of both soils decreases with an increase of the soil water content in two treatments,however,for treatment two,the increasing trends of wind erosion for two soils with the falling of soil water content are no significant,especially for the loam soil,and in the same soil water content,the wind erosion of two soils in treatment one is significantly higher than treatment two,this indicates reducing the disturbance of soil surface can evidently control the soil wind erosion.