JWRR  >> Vol. 3 No. 2 (April 2014)

    The Application of SWAT to Simulate the Runoff in the Xiangjiang Basin and the Parameter Sensitivity Analysis

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侯雨坤,陈 华,许崇育:水资源与水电工程科学国家重点实验室,武汉大学,武汉;水利水电学院,武汉大学,武汉;
黄 逍:水利水电学院,武汉大学,武汉

SWAT模型湘江数据库日径流SUFI-2Swat Model Xiangjiang Basin Database Daily Runoff SUFI-2



A distributed SWAT model was introduced and applied in Xiangjiang basin. To construct the database of SWAT, those data, including DEM, land use, soil and hydro-meteorology have been collected, transformed and analyzed. The sensitive analysis of parameters, as well as their calibration and validation, was carried out in five sub-basins, by using the daily rainfall and runoff data from 1991 to 2005. The result shows that among these parameters, the alpha coefficient and Manning coefficient have high sensitivity in the five regions when the Nash-Sutcliffe efficiency coefficient (Ens) was the objective function. During the validation period from 2001 to 2005, the Nash-Sut- cliffe efficiency coefficients of five sub-basins in Xiangjiang basin are all over 0.6, and the coefficients of water balance in five sub-basins are all within 10%, which shows that SWAT model has a good performance in simulating daily runoff in Xiangjiang basin.

侯雨坤, 黄逍, 陈华, 许崇育. 湘江流域SWAT模型建立及参数敏感性分析[J]. 水资源研究, 2014, 3(2): 85-94. http://dx.doi.org/10.12677/JWRR.2014.32014


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