[1]LIU Zhuoxi,CHEN Xin,GUAN Xiaoxiang,et al.Attribution of Runoff Change in the Taohe River Basin Under a Changing Environment[J].Research of Soil and Water Conservation,2020,27(05):87-90,100.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
87-90,100
Column:
目次
Public date:
2020-08-20
- Title:
-
Attribution of Runoff Change in the Taohe River Basin Under a Changing Environment
- Author(s):
-
LIU Zhuoxi1,2, CHEN Xin2,3, GUAN Xiaoxiang1,2, SHU Zhangkang2,3, YANG Xiaotian1,2, WANG Guoqing1,2,3
-
(1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; 2.Research Center for Climate Change, ministry of Water Resources, Nanjing 210029, China; 3.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China)
-
- Keywords:
-
basic discipline of water conservancy engineering; runoff change; attribution analysis; SWAT model; the Taohe River basin; environment change
- CLC:
-
TV11
- DOI:
-
-
- Abstract:
-
The recorded runoff in arid region presented a dramatically decline trend induced by environment change. It is of significance to quantitatively analyze the influences induced by different drivers for supporting river basin management. Taking the Taohe River basin in the upper reaches of the Yellow River basin as an example, the influences of climate change and human activities on runoff change were investigated by using hydrological simulation approach. The results show that:(1)in the past 60 years, the runoff in the Taohe River basin has had a significant decline trend with an average linear decreasing rate of -1.38 mm per year; runoff series presented an abrupt change in 1986, the measured runoff after 1986 decreased by 28.5% compared with the previous mean;(2)the SWAT model performs well for simulating the natural runoff process of the Taohr River with the Nash efficiency coefficient NSE and the coefficient of determination R2 both exceeding 80%, and the relative error RE less than 11%;(3)climate change and human activities contributed to 58.9% and 41.4% of the total runoff reduction, respectively: climate change is the main reason for runoff decrease, while the impact of human activities on runoff has an increasing trend.