干旱区生态环境知识资源中心(Arid): Quantifying the Impacts of Climate Change and Human Activities on Runoff Variation: Case Study of the Upstream of Minjiang River, China

Arid

DOI	10.1061/(ASCE)HE.1943-5584.0001980
	Quantifying the Impacts of Climate Change and Human Activities on Runoff Variation: Case Study of the Upstream of Minjiang River, China
	Liang, Shuqi; Wang, Wensheng; Zhang, Dan; Li, Yueqing; Wang, Guoqing
通讯作者	Wang, WS
来源期刊	JOURNAL OF HYDROLOGIC ENGINEERING
ISSN	1084-0699
EISSN	1943-5584
出版年	2020
卷号	25 期号:9
英文摘要	Quantifying the impacts of climate change and human activities on runoff variation has drawn considerable concern. In this study, a modified method of slope change ratio of accumulative quantity (modified SCRAQ) has been proposed to estimate the contributions of climate change and human activities on runoff variation. The variation characteristics of hydrometeorological series were detected in the upstream of Minjiang River (UMR), China, during 1960-2012 using the Mann-Kendall test. The contributions of climate change and human activities on runoff variation in the UMR were estimated using the double mass curve method and modified SCRAQ method. The results showed that annual precipitation of the UMR had an insignificant decreasing trend, annual mean temperature presented a significant increasing trend, and annual runoff exhibited a significant decreasing trend. The years of 1969 and 1995 are taken as representative abrupt change points; the total study period was divided into the natural period (1960-1969) and change period (1970-2012), which includes 1970-1995 and 1996-2012. Precipitation caused the decrease of runoff except for the change period of 1970-1995; mean temperature led to the increase of runoff in each change period. Furthermore, runoff in the UMR was more sensitive to variation of mean temperature than that of precipitation. Under their combined influence, climate change resulted in the increase of runoff; human activities (e.g., agriculture irrigation, deforestation and afforestation, and urban water supply, as well as the construction of large reservoirs and dams) caused the runoff reduction. Overall, the impacts of climate change and human activities on runoff varied differently in the UMR, and human activities were the main driving factor leading to runoff variation. The results in this study can provide necessary information for water resources management in the UMR.
英文关键词	Impact Runoff Climate change Human activities Upstream of Minjiang River
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000553299900003
WOS关键词	UPPER REACHES ; ARID REGION ; STREAMFLOW ; BASIN ; TRENDS ; VARIABILITY ; PRECIPITATION
WOS类目	Engineering, Civil ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325259
作者单位	[Liang, Shuqi; Wang, Wensheng; Zhang, Dan] Sichuan Univ, Sch Water Resource & Hydropower, Chengdu 610065, Peoples R China; [Wang, Wensheng] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China; [Li, Yueqing] China Meteorol Adm, Chengdu Inst Plateau Meteorol, Chengdu 610072, Peoples R China; [Wang, Guoqing] Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210029, Peoples R China
推荐引用方式 GB/T 7714	Liang, Shuqi,Wang, Wensheng,Zhang, Dan,et al. Quantifying the Impacts of Climate Change and Human Activities on Runoff Variation: Case Study of the Upstream of Minjiang River, China[J],2020,25(9).
APA	Liang, Shuqi,Wang, Wensheng,Zhang, Dan,Li, Yueqing,&Wang, Guoqing.(2020).Quantifying the Impacts of Climate Change and Human Activities on Runoff Variation: Case Study of the Upstream of Minjiang River, China.JOURNAL OF HYDROLOGIC ENGINEERING,25(9).
MLA	Liang, Shuqi,et al."Quantifying the Impacts of Climate Change and Human Activities on Runoff Variation: Case Study of the Upstream of Minjiang River, China".JOURNAL OF HYDROLOGIC ENGINEERING 25.9(2020).