干旱区生态环境知识资源中心(Arid): Assessing rainwater harvesting potential in a humid and semi-humid region based on a hydrological model

Arid

DOI	10.1016/j.ejrh.2021.100912
	Assessing rainwater harvesting potential in a humid and semi-humid region based on a hydrological model
	Luo, Kaisheng; Li, Yuanzheng
通讯作者	Luo, KS (corresponding author), Chinese Acad Sci, Smart Watershed Res Ctr, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2021
卷号	37
英文摘要	Study region: The upper regions of the Yangtze River in China. Study focus: Evaluating the rainwater harvesting potential (RWHP) is essential for alleviating regional drought and water shortage and solving water shortage and water crisis globally. However, previous studies have mainly focused on arid and semi-arid zones, whereas the assessment of RWHP in humid and sub-humid zones during the dry season is lacking. To fill this gap, a soil and water assessment tool based on meteorology, digital elevation model data, soil, land use, and observed streamflow, was constructed for a selected site. Additionally, a method of assessing RWHP in humid and semi-humid zones was proposed. New hydrological insights for the region: The results indicate that the average annual RWHP throughout the dry season (March-August) in the upper regions of the Yangtze River is 5657.02 x 10(5) m(3), and that for spring and summer are 1766.21 x 10(5) and 3890.95 x 10(5) m(3), respectively. Regarding the RWHP structure, it was observed that surface runoff (42.59 %) > groundwater recharge (29.53 %) > base-flow (19.43 %) > soil water content (7.16 %) > lateral flow (1.29). The analysis indicated that the spatial distribution of RWHP is consistent with that of drought, and can alleviate agricultural drought. The inter-annual variation of RWHP was relatively stable, exhibiting a weak increasing trend at the seasonal (dry, spring, and summer) and monthly (March-August) scales during 1999-2018. RWHP trends are primarily regulated by rainfall with the trend for a small part of the region being influenced by evapotranspiration. Our study provides a reference for the evaluation of RWHP in dry seasons in humid and semi-humid zones.
英文关键词	Rainwater harvesting potential Humid region Semi-humid region Spatial pattern Temporal dynamics Dry seasons
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000702769800004
WOS关键词	RIVER ; SUSTAINABILITY
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/2XILL650/363936
作者单位	[Luo, Kaisheng] Chinese Acad Sci, Smart Watershed Res Ctr, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China; [Luo, Kaisheng] Univ Chinese Acad Sci, Chongqing Sch, Chongqing 400714, Peoples R China; [Li, Yuanzheng] Henan Univ Econ & Law, Sch Resources & Environm, Zhengzhou 450046, Peoples R China; [Li, Yuanzheng] Academician Lab Urban & Rural Spatial Data Min He, Zhengzhou 450046, Peoples R China
推荐引用方式 GB/T 7714	Luo, Kaisheng,Li, Yuanzheng. Assessing rainwater harvesting potential in a humid and semi-humid region based on a hydrological model[J],2021,37.
APA	Luo, Kaisheng,&Li, Yuanzheng.(2021).Assessing rainwater harvesting potential in a humid and semi-humid region based on a hydrological model.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,37.
MLA	Luo, Kaisheng,et al."Assessing rainwater harvesting potential in a humid and semi-humid region based on a hydrological model".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 37(2021).