[1]BIAN Jian-min,HU Yu-xin,ZHANG Zhen-zhen,et al.Study on Runoff Simulation in Dongliao River Basin of Jilin Province[J].Research of Soil and Water Conservation,2014,21(04):246-250.

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Study on Runoff Simulation in Dongliao River Basin of Jilin Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 04 Page number: 246-250 Column: Public date: 2014-08-28

Title:: Study on Runoff Simulation in Dongliao River Basin of Jilin Province

Author(s):: BIAN Jian-min, HU Yu-xin, ZHANG Zhen-zhen, TANG Jie, ZHAO Juan; College of Environment and Resources, Jilin University, Changchun 130021, China

Keywords:: Dongliao River basin; SWAT model; runoff simulation

CLC:: P333.3

DOI:: -

Abstract:: The Dongliao River in Jilin Province was taken as a case study area. Runoff simulation of the Quantai hydrological station was carried out with SWAT, a distributed hydrological model. In order to analyze the factors influencing hydrological process, the accuracy of runoff process simulation and the model applicability for the study area, parameters were calibrated by observed monthly runoff data from 2006 to 2008, and validated from 2009 to 2010. The results showed that during the calibration and validation period, the simulation results of the Quantai hydrological station were overall credible and consistent with the measured runoff, and the coefficients of determination (R²) were both greater than 0.6, and Nash-Suttclife efficiency factors (E_ns) were both greater than 0.75, as well as the relative errors (R) were both less than 30%. During the validation, the relative error was smaller, the coefficients of determination (R²) and Nash-Suttclife efficiency factors were both greater than 0.9. Rainfall is an important factor affecting the runoff processes, a better positive correlation between the monthly runoff simulation and rainfall process was found during the calibration and validation period, while the calibration period is higher. However, the results were better and accurate with the calibrated parameters applied to the model. SWAT model exhibited the strong applicability when it was applied to simulate the runoff process of Dongliao River in Jilin Province.

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