[1]WANG Wei,FANG Xiuqin,DU Xiaotong,et al.Distributed Hydrological Simulation and Application in Liujiang River Basin Based on VIC Model[J].Research of Soil and Water Conservation,2020,27(03):328-335.
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Distributed Hydrological Simulation and Application in Liujiang River Basin Based on VIC Model
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
328-335
Column:
目次
Public date:
2020-04-20
- Title:
- Distributed Hydrological Simulation and Application in Liujiang River Basin Based on VIC Model
- Keywords:
- VIC model; Liujiang River Basin; Mann-Kendall test
- CLC:
- TV121
- DOI:
- -
- Abstract:
- In order to provide scientific basis for rational planning and utilization of water resources in Xijiang River Basin, the distributed hydrological model VIC(Variable Infiltration Capacity)was used to simulate the temporal and spatial distribution of hydrological processes in the Liujiang River Basin. The Nash-Sutcliffe efficiency coefficient(NS), relative deviation(BIAS), and correlation coefficient(r)were selected as the objective functions for calibrating and validating the parameters of VIC. The results showed that for the daily simulation, the values of NS and r were mostly greater than 0.7, and the values of BIAS were all less than 11%; for the monthly simulation, NS and r were both greater than 0.85, and BIAS was about 7%; spatially, the relative error of water balance for all the grids in the Liujiang River basin were less than 1.2%. Finally, the precipitation, actural evapotranspiration, surface runoff and underground runoff in the Liujiang River Basin were extracted according to the outputs of VIC model, and the change trends of these four factors were analyzed by using Mann-Kendall trend test method. The results showed that precipitation in over 48% of the basin area, evapotranspiration in over 24% of the basin area and surface runoff in over 71% of the basin area presented the increasing trend in Liujiang River Basin. However, the base flow has no obvious change trend on the whole. All the above results indicate the VIC model has the good performance at temperal and spatial scales in the Liujiang River Basin.
- References:
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Last Update:
2020-04-30