干旱区生态环境知识资源中心(Arid): Stormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers

Arid

DOI	10.1007/s10040-021-02345-9
	Stormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers
	Henao Casas, Jose D.; Kalwa, Fritz; Walther, Marc; Rausch, Randolf
通讯作者	Casas, JDH (corresponding author), Tragsa, Dept Integrated Water Resources Management, Calle Maldonado 58, Madrid 28006, Spain. ; Casas, JDH (corresponding author), Univ Politecn Madrid UPM, Upper Tech Sch Agr Engineers, Ave Puerta Hierro 2-4, Madrid 28040, Spain. ; Casas, JDH (corresponding author), Tech Univ Dresden, Dept Hydro Sci, Bergstr 66, D-01069 Dresden, Germany.
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2021
英文摘要	To cope with water scarcity in drylands, stormwater is often collected in surface basins and subsequently stored in shallow aquifers via infiltration. These stormwater harvesting systems are often accompanied by high evaporation rates and hygiene problems. This is commonly a consequence of low infiltration rates, which are caused by clogging layers that form on top of the soil profile and the presence of a thick vadose zone. The present study aims to develop a conceptual solution to increase groundwater recharge rates in stormwater harvesting systems. The efficiency of vadose-zone wells and infiltration trenches is tested using analytical equations, numerical models, and sensitivity analyses. Dams built in the channel of ephemeral streams (wadis) are selected as a study case to construct the numerical simulations. The modelling demonstrated that vadose-zone wells and infiltration trenches contribute to effective bypassing of the clogging layer. By implementing these solutions, recharge begins 2250-8100% faster than via infiltration from the bed surface of the wadi reservoir. The sensitivity analysis showed that the recharge rates are especially responsive to well length and trench depth. In terms of recharge quantity, the well had the best performance; it can infiltrate up to 1642% more water than the reservoir, and between 336 and 825% more than the trench. Moreover, the well can yield the highest cumulative recharge per dollar and high recharge rates when there are limitations to the available area. The methods investigated here significantly increased recharge rates, providing practical solutions to enhance aquifer water storage in drylands.
英文关键词	Managed aquifer recharge Analytical solutions Numerical modelling Arid and semi-arid regions Vadose zone
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000641195900001
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352227
作者单位	[Henao Casas, Jose D.] Tragsa, Dept Integrated Water Resources Management, Calle Maldonado 58, Madrid 28006, Spain; [Henao Casas, Jose D.] Univ Politecn Madrid UPM, Upper Tech Sch Agr Engineers, Ave Puerta Hierro 2-4, Madrid 28040, Spain; [Henao Casas, Jose D.; Kalwa, Fritz; Walther, Marc] Tech Univ Dresden, Dept Hydro Sci, Bergstr 66, D-01069 Dresden, Germany; [Walther, Marc] Helmholtz Ctr Environm Res UFZ Leipzig, Permoserstr 15, D-04318 Leipzig, Germany; [Rausch, Randolf] Tech Univ Darmstadt, Dept Geosci, Schnittspahnstr, D-64287 Darmstadt, Germany
推荐引用方式 GB/T 7714	Henao Casas, Jose D.,Kalwa, Fritz,Walther, Marc,et al. Stormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers[J],2021.
APA	Henao Casas, Jose D.,Kalwa, Fritz,Walther, Marc,&Rausch, Randolf.(2021).Stormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers.HYDROGEOLOGY JOURNAL.
MLA	Henao Casas, Jose D.,et al."Stormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers".HYDROGEOLOGY JOURNAL (2021).