Impacts of Climate Change and Human Activity on the Runoff Changes in the Guishui River Basin

Meilin Wang, Yaqi Shao, Qun’ou Jiang, Ling Xiao, Haiming Yan, Xiaowei Gao, Lijun Wang and Peibin Liu
Additional contact information
Meilin Wang: School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
Yaqi Shao: School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
Qun’ou Jiang: School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
Ling Xiao: School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
Haiming Yan: School of Land Resources and Urban & Rural Planning, Digital Territory Experiment Center, Hebei GEO University, Shijiazhuang 050031, China
Xiaowei Gao: Beijing Institute of Water, Beijing 100048, China
Lijun Wang: Beijing Institute of Water, Beijing 100048, China
Peibin Liu: Beijing Institute of Water, Beijing 100048, China

Land, 2020, vol. 9, issue 9, 1-20

Abstract: Guishui River Basin in northwestern Beijing has ecological significance and will be one of the venues of the upcoming Beijing Winter Olympic Games in 2022. However, accelerating climate change and human disturbance in recent decades has posed an increasing challenge to the sustainable use of water in the basin. This study simulated the runoff of the Guishui River Basin using the Soil and Water Assessment Tool (SWAT) model to reveal the spatio-temporal variations of runoff in the basin and the impacts of climate change and human activities on the runoff changes. The results showed that annual runoff from 2004 to 2018 was relatively small, with an uneven intra-annual runoff distribution. The seasonal trends in runoff showed a decreasing trend in spring and winter while an increasing trend in summer and autumn. There was a first increasing and then decreasing trend of average annual runoff depth from northwest to southeast in the study area. In addition, the contributions of climate change and human activities to changes in runoff of the Guishui River Basin were 60% and 40%, respectively, but with opposite effects. The results can contribute to the rational utilization of water resources in the Guishui River Basin.

Keywords: SWAT model; runoff changes; climate change; human activities; Guishui River Basin (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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