Research on the response of the water sources to the climatic change in Shiyang River Basin

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Jin, Y.Z.^1 ; Zeng, J.J.^2 ; Hu, X.Q.^1 ; Sun, D.Y.^1 ; Song, Z.F.^1 ; Zhang, Y.L.^1 ; Lu, S.C.^1 ; Cui, Y.Q.^3

Gansu Research Institute for Water Conservancy, Lanzhou

730000, China^1

Key Laboratory of Western China's Environmental Systems, Ministry of Education, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu

730000, China^2

College of Teacher's Education, Honghe University, Honghe

654400, China^3

关键词: Actual measurements;    Development and utilizations;    Hydrological modeling;    Model verification;    Runoff simulation;    Shiyang river basins;    Technical assistance;    Watershed management;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012093/pdf
DOI  :  10.1088/1755-1315/82/1/012093

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The influence of the future climate change to the water resource will directly pose some impact on the watershed management planning and administrative strategies of Shiyang River Basin. With the purpose of exploring the influence of climate change to the runoff, this paper set Shiyang River as the study area and then established a SWAT basin hydrological model based on the data such as DEM, land use, soil, climate hydrology and so on. Besides, algorithm of SUFI2 embedded in SWAT-CUP software is adopted. The conclusion shows that SWAT Model can simulate the runoff process of Nanying River well. During the period of model verification and simulation, the runoff Nash-Sutcliffe efficient coefficient of the verification and simulation is 0.76 and 0.72 separately. The relative error between the simulation and actual measurement and the model efficient coefficient are both within the scope of acceptance, which means that the SWAT hydrological model can be properly applied into the runoff simulation of Shiyang River Basin. Meantime, analysis on the response of the water resources to the climate change in Shiyang River Basin indicates that the impact of climate change on runoff is remarkable under different climate change situations and the annual runoff will be greatly decreased as the precipitation falls and the temperature rises. Influence of precipitation to annual runoff is greater than that of temperature. Annual runoff differs obviously under different climate change situations. All in all, this paper tries to provide some technical assistance for the water sources development and utilization assessment and optimal configuration.