Contributions of climate change and human activities to runoff variations in the Poyang Lake Basin of China

被引：37

作者：

Lei, Xiangyong ^{[1
]}

Gao, Lu ^{[1
,2
,3
,4
]}

Wei, Jianhui ^{[5
]}

Ma, Miaomiao ^{[6
]}

Xu, Ligang ^{[7
]}

Fan, Hongxiang ^{[7
]}

Li, Xianghu ^{[7
]}

Gao, Jianyun ^{[8
]}

Dang, Haofei ^{[8
]}

Chen, Xingwei ^{[1
,2
,3
,4
]}

Fang, Weihua ^{[9
]}

机构：

[1] Fujian Normal Univ, Inst Geog, Fuzhou 350007, Peoples R China

[2] Fujian Normal Univ, Coll Geog Sci, Fuzhou 350007, Peoples R China

[3] Fujian Normal Univ, Fujian Prov Engn Res Ctr Monitoring & Accessing T, Fuzhou 350007, Peoples R China

[4] Fujian Normal Univ, State Key Lab Subtrop Mt Ecol Funded Minist Sci &, Fuzhou 350007, Peoples R China

[5] Karlsruhe Inst Technol, Inst Meteorol & Climate Res, D-82439 Garmisch Partenkirchen, Germany

[6] China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China

[7] Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Peoples R China

[8] Fujian Key Lab Severe Weather, Fuzhou 350001, Peoples R China

[9] Beijing Normal Univ, Fac Geog Sci, Minist Educ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China

来源：

PHYSICS AND CHEMISTRY OF THE EARTH | 2021年 / 123卷

关键词：

Climate change; Human activity; Runoff depth; Precipitation; Poyang lake basin; IMPACTS; STREAMFLOW; CATCHMENT; FLOW;

D O I：

10.1016/j.pce.2021.103019

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Climate change and human activities have impacted the Poyang Lake Basin (PLB) greatly over the past decades, and have significantly changed the local ecological environment and hydrological cycle. Based on the daily records from 16 meteorological stations and 7 gauging stations in the Poyang Lake Basin from 1960 to 2015, the contributions of climate change and human activities to runoff variations under different timescales (annual, flood season, and non-flood season) were explored using the Mann-Kendall, Moving-T test, and a linear regression model. The results showed that on annual timescale, climate change accounted for 91.88% of the increased runoff depth. However, intensive human activities in the subbasins would have reduced the runoff depth in the Poyang Lake Basin. The impact of climate change on the variation of runoff depth increased during the flood season. Climate change and human activities contributed similar to 57% and similar to 42%, respectively. Both climate change and human activities could increase the runoff depth during the non-flood season.

引用

页数：10

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