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[1]LI Xun-gui,LI Zhan-bin,WEI Xia.Two Key Physical Characteristics Indexes of Farmland Sediment for Check Dams in Loess Plateau[J].Research of Soil and Water Conservation,2007,14(02):218-220,223.

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Two Key Physical Characteristics Indexes of Farmland Sediment for Check Dams in Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 14 Number of periods: 2007年02期 Page number: 218-220,223 Column: Public date: 1900-01-01

Title:: Two Key Physical Characteristics Indexes of Farmland Sediment for Check Dams in Loess Plateau

Author(s):: LI Xun-gui¹, LI Zhan-bin², WEI Xia³; 1. Environmental Science and Engineering College, Chang’an University, Xi’an, Shaanxi 710054;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100;
3. Institute of Water Resources and Hydro-electric Engineering, Xi’an University of Technology, Xi’an 710048, China

Keywords:: Loess Plateau; check dam; physical characteristics; dry bulk density; grain composition; depositing process

CLC:: S157.31

DOI:: -

Abstract:: Depositing process mechanics is the unsubstantial part, study on physical characteristics indexes of farmland sediment for check dam is very important for depositing process mechanics. Based on the data from field investigation of typical check dams, by combining outdoor experiments with indoor experiments, the sediment physical characteristics indexes of farmland sediment was researched. The result indicates that dry bulk density variation rule is simulated while depositing degree resembles; for the same check dam, the dry bulk density has a increasing tendency from upper layer to bottom layer while the thickness of depositing layer resembles; the grain diameter was mainly distributed among the range from 0.025 mm to 0.1 mm. The results were useful for providing important parameters for solving depositing sediment and building the co-relationship between the sediment amount of the sedimentation layer and the precipitation.

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Last Update: 1900-01-01