干旱区生态环境知识资源中心(Arid): Runoff variation characteristics, association with large-scale circulation and dominant causes in the Heihe River Basin, Northwest China

Arid

DOI	10.1016/j.scitotenv.2019.05.397
	Runoff variation characteristics, association with large-scale circulation and dominant causes in the Heihe River Basin, Northwest China
	Cheng, Qingping 1,2,3; Zuo, Xiaoan 1,2; Zhong, Fanglei 4; Gao, Lu 5,6,7; Xiao, Shengchun 2
通讯作者	Zuo, Xiaoan ; Zhong, Fanglei
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	688 页码:361-379
英文摘要	The water resources in arid and semi-arid regions are critical to providing reliable sources of water for food production and ecosystem functioning. In this study, continuous wavelet transform and wavelet coherence were used to analyse the runoff periodicity and relationship with climate indices, respectively. Additionally, the double mass curve (DMCD), the slope changing ratio of cumulative quantity (SCRCQ) and the Choudhury-Yang equation (Budyko-CY) methods for different potential evapotranspiration data (E-0(E-0-20 cm, E-0-PM, E-0-H)) were used to separate the impacts of climate changes and anthropogenic activities on runoff variations. The results demonstrated that the flow regimes in high and low flow seasons were not obvious shifts, and that after implementation of the Ecological Water Diversion Project (EWDP), ecosystems were gradually restored in the downstream portion of the Heihe River Basin (DHRB). Periodicities of 1-7 years and 1-5.8 years were detected in Yingluoxia and Zhengyixia, respectively. Additionally, on a 1-148.2 month timescale, the monthly runoff with AO, NAO, PDO, and AMO had significant resonance periodicity and a 1-48 month Spearman's lag correlation. On the annual and high-flow, climate changes dominant determinant to an increase of runoff for the DMCD and Budyko-CY in period 2, SCRCQ and Budyko-CY in period 3 for different E-0 in the upstream (UHRB). In the midstream (MHRB) region, anthropogenic activities played a dominant role in deducing the runoff by the SCRCQ and Budyko-CY methods for different E-0 values in period 3. During the low-flow season, the impact of human activities in the UHRB and climate changes in the MHRB was significant for period 2 and 3. Therefore, the impacts of climate change and human activities on runoff changes caused by the introduction of different E-0 on different timescales should be fully considered in the future. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Runoff variation Potential evapotranspiration Separation methods Dominant causes Heihe River Basin
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000481589100037
WOS关键词	CLIMATE-CHANGE IMPACTS ; LAND USE/COVER CHANGE ; KENDALL TREND TEST ; WATER-RESOURCES ; MIDDLE REACHES ; YELLOW-RIVER ; HYDROLOGICAL PROCESSES ; BUDYKO HYPOTHESIS ; LOESS PLATEAU ; YANGTZE-RIVER
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218718
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Lanzhou Univ, Sch Econ, Lanzhou 730000, Gansu, Peoples R China; 5.Fujian Normal Univ, Inst Geog, Fuzhou 350007, Fujian, Peoples R China; 6.Fujian Normal Univ, Fujian Prov Engn Res Ctr Monitoring & Assessing T, Fuzhou 350007, Fujian, Peoples R China; 7.Fujian Normal Univ, State Key Lab Subtrop Mt Ecol, Minist Sci & Technol & Fujian Prov, Fuzhou 350007, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Qingping,Zuo, Xiaoan,Zhong, Fanglei,et al. Runoff variation characteristics, association with large-scale circulation and dominant causes in the Heihe River Basin, Northwest China[J]. 兰州大学,2019,688:361-379.
APA	Cheng, Qingping,Zuo, Xiaoan,Zhong, Fanglei,Gao, Lu,&Xiao, Shengchun.(2019).Runoff variation characteristics, association with large-scale circulation and dominant causes in the Heihe River Basin, Northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,688,361-379.
MLA	Cheng, Qingping,et al."Runoff variation characteristics, association with large-scale circulation and dominant causes in the Heihe River Basin, Northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 688(2019):361-379.