Annual shifts of flow regime alteration: new insights from the Chaishitan Reservoir in China

doi:10.1038/s41598-018-19717-z

	Annual shifts of flow regime alteration: new insights from the Chaishitan Reservoir in China
	Zhang, Yongyong 1; Zhai, Xiaoyan 2,3; Zhao, Tongtiegang 4
刊名	SCIENTIFIC REPORTS
	2018-01-23
卷号	8 页码:11
ISSN号	2045-2322
DOI	10.1038/s41598-018-19717-z
通讯作者	Zhang, Yongyong(zhangyy003@igsnrr.ac.cn)
英文摘要	Reservoir regulation is variable for flow regime alterations and mainly depends on operational objectives and hydro-meteorological conditions. In this study, the flow regime metrics (i.e., magnitude, variability and frequency, duration, timing and rate of change) are adopted to describe variations in both long-term inflow and outflow series of the Chaishitan Reservoir in China. Deviations between the inflow and outflow metrics are calculated to assess the flow regime alterations at annual scale. Further, dimensions of both time and flow regimes are reduced by multivariate statistical analysis, and the regulation patterns and their annual shifts are identified. Results show that: four regulation patterns are identified from 2004 to 2015. The regulation is gradually enhanced over time with typical features of different hydrological years. In dry years, the pattern is slightly regulated flow regimes with slightly discharging stored water and flattening outflow, moderate stability and intermittency. In normal years, the pattern is slightly regulated flow regimes with extremely increasing flow magnitude in the pre-nonflood season, high stability and slight intermittency. In wet years, the pattern is moderately regulated flow regimes with moderately decreasing flow magnitude in the flood season but extremely increasing flow magnitude in the nonflood season, slight stability and high intermittency.
资助项目	Natural Science Foundation of China[41671024] ; China Youth Innovation Promotion Association CAS[2014041] ; Program for Bingwei Excellent Talents in IGSNRR CAS[2015RC201]
WOS关键词	HUAI RIVER-BASIN ; HYDROLOGIC ALTERATION ; DAMS ; MANAGEMENT ; IMPACTS ; BRAZIL ; SPAIN
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000423044400030
资助机构	Natural Science Foundation of China ; China Youth Innovation Promotion Association CAS ; Program for Bingwei Excellent Talents in IGSNRR CAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/56912]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongyong
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China 3.Minist Water Resources, Res Ctr Flood & Drought Disaster Reduct, Beijing 100038, Peoples R China 4.Univ Melbourne, Dept Infrastruct Engn, Parkville, Vic 3052, Australia
推荐引用方式 GB/T 7714	Zhang, Yongyong,Zhai, Xiaoyan,Zhao, Tongtiegang. Annual shifts of flow regime alteration: new insights from the Chaishitan Reservoir in China[J]. SCIENTIFIC REPORTS,2018,8:11.
APA	Zhang, Yongyong,Zhai, Xiaoyan,&Zhao, Tongtiegang.(2018).Annual shifts of flow regime alteration: new insights from the Chaishitan Reservoir in China.SCIENTIFIC REPORTS,8,11.
MLA	Zhang, Yongyong,et al."Annual shifts of flow regime alteration: new insights from the Chaishitan Reservoir in China".SCIENTIFIC REPORTS 8(2018):11.