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[1]YANG Wei,TANG Jie,LI Zhao-yang,et al.Streamflow and Sediment Simulation Based on SWAT Model in Dahuofang Reservoir Catchment[J].Research of Soil and Water Conservation,2012,19(02):77-81.

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Streamflow and Sediment Simulation Based on SWAT Model in Dahuofang Reservoir Catchment

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 77-81 Column: Public date: 2012-04-20

Title:: Streamflow and Sediment Simulation Based on SWAT Model in Dahuofang Reservoir Catchment

Author(s):: YANG Wei¹, TANG Jie¹, LI Zhao-yang¹, BIAN Jian-min¹, YAN Yu²; 1. College of Environment and Resources, Jilin University, Changchun 130012, China;
2. China Northeast Municipal Engineering Design and Research Institute, Changchun 130021, China

Keywords:: SWAT; streamflow; sediment; simulation; Dahuofang Reservoir

CLC:: P338⁺.5

DOI:: -

Abstract:: This study simulated the stream flow and sediment based on SWAT model in Dahuofang reservoir catchment,GIS technology and basic information database of watershed.The calibration and validation of streamflow and sediment were performed from 2006 to 2009,and the results showed that SWAT model could be applied to study area very well.The results of model evaluation showed that the annually amount of soil erosion was 1.539 5×10⁵t,which was low-grade erosion in the category.Soil erosion rate was 475.84t/(km²·a) in cultivated lands,and the ratio of sediment yield which was brought to river from cultivated lands was 94.4%.Reservoir inflow was 1.089 9×10⁹m³ and sediment flux into the reservoir was 8.265×10⁴t,and the Hunhe River had the largest contribution,followed by Suzi River.Sediment yield was highly different all the year around,and the ratio of sediment yield was 67.9% in July and August out of the whole year.This research reveals the soil erosion regulation in catchment area of Dahuofang Reservoir serving as the water source of major cities in Liaoning Province,and provides important basic support for soil and water conservation and the prevention of non-point source pollution.

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