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[1]DU Tingting,GUO Mengjing,ZHANG Jinmei,et al.Hydrological Simulation and Application of VIC Model in Xijiang River Basin[J].Research of Soil and Water Conservation,2021,28(05):121-127.

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Hydrological Simulation and Application of VIC Model in Xijiang River Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 05 Page number: 121-127 Column: Public date: 2021-08-20

Title:: Hydrological Simulation and Application of VIC Model in Xijiang River Basin

Author(s):: DU Tingting¹,GUO Mengjing²,ZHANG Jinmei³,TIAN Shiye⁴; (1.Mianyang Vocational and Technical College,Mianyang,Sichuan 621000,China; 2.College of Water Conservancy and Hydropower,Xi'an University Of Technology,Xi'an 710077,China; 3.Jiangxi Institute of Water Sciences,Nanchang 330029,China; 4.Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province,Nanchang 330045,China)

Keywords:: Xijiang River Basin; VIC model; model application; hydrological elements; change trend analysis

CLC:: P333

DOI:: -

Abstract:: The study of the natural hydrophysical process of the basin is of great significance to ensure the water safety of the basin. This study used the Xijiang River as the study area and combined the land surface hydrological model VIC(Variable Infiltration Capacity,VIC)to simulate the hydrological process of the natural water cycle of the basin on different time scales. The results show that the VIC model has good applicabilityfor runoff simulation process on both daily and monthly scales in the Xijiang River Basin,and both reach or exceed NS>0.6 while the absolute value of BIAS is less than 0.15 standard requirements; secondly,a deeper application of the VIC model can extract four elements such as surface runoff(R),underground base flow(B),precipitation(P),evapotranspiration(E)from the many raster-based hydrological elements output by the model; the Mann-Kendall change trend test method can be used to analyze the change trends of these four elements in a total of 40 years from 1971 to 2010. These results show that the evapotranspiration in more than 37% of the Xijiang River Basin,the precipitation in more than 29% of Xijiang River Basin,and the surface runoff in more than 65% of Xijiang River Basin have the significant increase trend,while the change trend of underground base flow in these 40 years is not significant.

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Last Update: 2021-08-20