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Impacts of Climate Change on Spatial and Temporal Distribution of Runoff and Sediment Yield in Xixi Watershed of Jinjiang Basin

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Meteorological and Environmental Research 2016年第3期7卷 34-37页

作者： Rong Kun Department of Resources and Environment Binzhou University

Based on meteorologic data in Xixi Watershed from 1972 to 1979, the swat model was applied to simulate the response of runoff and sediment yield in Xixi Watershed to climate change under 24 kinds of climate change scenarios, and then the spatial and temporal distribution of change rates of the runoff and sediment were analyzed. The results showed that the runoff yield would increase with the increase of precipitation or decrease of temperature, and the sediment yield would increase with the increase of precipitation or increase of temperature; the runoff would be more sensitive to variations in precipitation than to variations in temperature, and precipitation change would lead to more obvious change in the run- off yield; the temporal distribution of change rates of the runoff and sediment yield would be uneven in the 12 months, and the variation trends of the two change rates in the 12 months would be accordant; the spatial distribution of change rates of the runoff and sediment yield would be uneven in the sub-watersheds, and the change rate of the runoff yield would be bigger in the sub-watersheds where the runoff yield in the basic period would be smaller. This study can provide decision-making basis for sustainable development of Jinjiang Basin.

关键词： Climate change Runoff yield Sediment yield Spatial and temporal distribution swat model Xixi Watershed

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The Establishment of swat Database in Guishui River Basin,Beijing,China

The Establishment of SWAT Database in Guishui River Basin,Be...

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2011 International Symposium on Water Resource and Environmental Protection(ISWREP 2011)

作者： LIU Yu-ming ZHANG Jing Key Lab of Three Dimension Information Acquisition Application Capital Normal University

swat model is a long-term distributed hydrologic model which can simulate basins well in *** its original database is designed for US while it is not fit for China in the *** has been restricting its development in *** this paper,the method of establishing a database in Guishui River basin was focused ***,precipitation interpolation and the conversion of soil and landuse data are ***,the calculation of the key data and parameters is presented,like solar radiation data and user weather station parameters.

关键词： swat model database precipitation interpolation parameter calculation

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