干旱区生态环境知识资源中心(Arid): Identification of the Space-Time Variability of Hydrological Drought in the Arid Region of Northwestern China

Arid

DOI	10.3390/w11051051
	Identification of the Space-Time Variability of Hydrological Drought in the Arid Region of Northwestern China
	Wang, Huaijun 1,2; Chen, Zhongsheng 3; Chen, Yaning4 ; Pan, Yingping 5; Feng, Ru 1
通讯作者	Wang, Huaijun
来源期刊	WATER
EISSN	2073-4441
出版年	2019
卷号	11 期号:5
英文摘要	Drought monitoring is crucial to water resource management and strategic planning. Thus, the objective of this study is to identify the space-time variability of hydrological drought across the broad arid region of northwestern China. Seven distributions were applied to fitting monthly streamflow records of 16 gauging stations from 10 rivers. Finally, the general logistic distribution was selected as the most appropriate one to compute the Standardized Streamflow Index (SSI). The severity and duration of hydrological droughts were also captured from the SSI series. Moreover, we investigate the relationship between hydrological drought (SSI) and meteorological drought (Standardized Precipitation-Evapotranspiration Index (SPEI)) at different time scales. The results show that drought duration and severity decreased over time in the Aibihu, Irtysh, Kaidu, Aksu, Yarkand, Hoton, Shule, Heihe (upstream), and Shiyang Rivers. However, the Tarim (upstream) and Heihe (middle stream) Rivers showed increasing drought duration and severity and this can be attributed to recent decades human activities. Furthermore, two correlation coefficient patterns between SSI and SPEI were found for the rivers of interest, an increasing-decreasing pattern for the Irtysh, Heihe, and Shiyang Rivers, where the precipitation is the main runoff supply, and an increasing-stable pattern for Aibihu and the Kaidu, Aksu, Yarkand, Hotan, and Shule Rivers, where glacier melt water provided a relatively high supply of runoff. Our findings are a contribution towards implementing effective water resources evaluation and planning in this arid region.
英文关键词	hydrological drought Standardized Streamflow Index (SSI) Standardized Precipitation-Evapotranspiration Index (SPEI) arid region of northwestern China
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000472680400181
WOS关键词	HEIHE RIVER-BASIN ; CLIMATE-CHANGE ; WATER-RESOURCES ; STREAMFLOW ; IMPACTS ; RUNOFF ; SCALES ; INDEX ; ASSOCIATION ; SERIES
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	中国科学院新疆生态与地理研究所 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219202
作者单位	1.Huaiyin Normal Univ, Sch Urban & Environm Sci, Huaian 223300, Peoples R China; 2.Nanjing Hydraul Res Inst, Res Ctr Climate Change, Minist Water Resources, Nanjing 210029, Jiangsu, Peoples R China; 3.China West Normal Univ, Dept Land & Resources, Nanchong 637002, Peoples R China; 4.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; 5.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huaijun,Chen, Zhongsheng,Chen, Yaning,et al. Identification of the Space-Time Variability of Hydrological Drought in the Arid Region of Northwestern China[J]. 中国科学院新疆生态与地理研究所, 北京师范大学,2019,11(5).
APA	Wang, Huaijun,Chen, Zhongsheng,Chen, Yaning,Pan, Yingping,&Feng, Ru.(2019).Identification of the Space-Time Variability of Hydrological Drought in the Arid Region of Northwestern China.WATER,11(5).
MLA	Wang, Huaijun,et al."Identification of the Space-Time Variability of Hydrological Drought in the Arid Region of Northwestern China".WATER 11.5(2019).