干旱区生态环境知识资源中心(Arid): Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow-producing zone

Arid

DOI	10.1002/hyp.14642
	Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow-producing zone
	Sang, Liyuan; Zhu, Guofeng; Qiu, Dongdong; Zhang, Zhuanxia; Liu, Yuwei; Zhao, Kailiang; Wang, Lei; Sun, Zhigang
通讯作者	Zhu, GF
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2022
卷号	36 期号:8
英文摘要	In-depth knowledge of the hydrological conditions of basins in arid regions can help to maintain the long-term water security. The mechanisms of runoff generation and flow paths in different landscape areas are not fully known due to spatial variability. We have explored the mechanisms by which spatial variability affects the runoff recharge sources in the Xiying River Basin. The results showed that the spatial variability of the sources and generation mechanisms of runoff in the arid mountain flow-producing zone is the result of the combined effect of different landscape, elevation and meteorological elements. In the upstream area, the short mean transit time (MTT) combined with the high contribution of recharge from the meltwater (29.32%) and the proportion of pre-event water (between 60% and 90%) means that runoff production processes are strongly controlled by meltwater recharge and precipitation events. The MTT and the proportion of pre-event water in the midstream area are ranked in the middle of the three landscape areas, but the highest contribution of precipitation (16.57%) indicates the importance of precipitation to runoff production processes. In the downstream area, the MTT is the longest and the proportion of pre-event water is the smallest, and groundwater remains the basis for long-term stability of runoff (groundwater contribution rate: 40.62%). By enhancing the spatial resolution for identifying runoff recharge sources can reduce the model uncertainty by 69%. Thus, taking full account of the spatial heterogeneity in arid regions is an important initiative to achieve scientific water resources management.
英文关键词	arid region flow-producing zone hydrograph separation spatial variability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000834614100001
WOS关键词	HYDROGRAPH SEPARATION ; RIVER-BASIN ; SOIL-WATER ; CATCHMENT ; GROUNDWATER ; STREAMFLOW ; MELTWATER ; GANGA
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393052
推荐引用方式 GB/T 7714	Sang, Liyuan,Zhu, Guofeng,Qiu, Dongdong,et al. Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow-producing zone[J],2022,36(8).
APA	Sang, Liyuan.,Zhu, Guofeng.,Qiu, Dongdong.,Zhang, Zhuanxia.,Liu, Yuwei.,...&Sun, Zhigang.(2022).Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow-producing zone.HYDROLOGICAL PROCESSES,36(8).
MLA	Sang, Liyuan,et al."Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow-producing zone".HYDROLOGICAL PROCESSES 36.8(2022).