气候变化领域集成服务门户(CCPortal): Tracking flowpaths in a complex karst system through tracer test and hydrogeochemical monitoring: Implications for groundwater protection (Gran Sasso, Italy)

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DOI	10.1016/j.heliyon.2024.e24663
	Tracking flowpaths in a complex karst system through tracer test and hydrogeochemical monitoring: Implications for groundwater protection (Gran Sasso, Italy)
	Lorenzi, V.; Banzato, F.; Barberio, M. D.; Goldscheider, N.; Gori, F.; Lacchini, A.; Manetta, M.; Medici, G.; Rusi, S.; Petitta, M.
发表日期	2024
EISSN	2405-8440
起始页码	10
结束页码	2
卷号	10 期号:2
英文摘要	Groundwater in karst aquifers is frequently tapped for drinking purposes, due to frequent huge volumes of resources. Unfortunately, vulnerability of these aquifers can be high, due to possible fast transfer of recharge water on springs by the karst network. On Gran Sasso Mountain regional aquifer, several springs are subjected to drinking withdrawal and an updated evaluation of their potential is now a fundamental issue to be considered, facing climate change effects, which reflect on variation of discharge regimen and values. To distinguish between different contribution of spring recharge, a tracer test has been carried out on the Vitella d'Oro spring, fed both by the regional aquifer and by a local system exposed to karst features developed in the Rigopiano Conglomerates formation. Thanks to hydrogeological, hydrogeochemical and isotopic data, a conceptual model of spring recharge has been proposed and subsequently validated by the tracer test results. All information confirms the superimposition on the regional base flow, by a relevant contribution of the karst network, influencing the spring discharge in recharge periods. In detail, a fast flow component is responsible for discharge peaks and frequently of turbidity events, having a mean velocity ranging from 30 to 70 m/h in the aquifer. Besides of this fast flow, an additional aliquot of the recharge is due to the same local aquifer, but slower flow clearly identifiable by hydrochemistry and isotopic data. Thanks to these findings, a renewed management of the spring has been suggested, considering the different degrees of aquifer vulnerability (turbidity occurrence) directly related to the discharge regimen.
英文关键词	Groundwater; Karst aquifer; Tracer test; Isotope; Flowpaths
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001161936800001
来源期刊	HELIYON
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301119
作者单位	Sapienza University Rome; Istituto Nazionale Geofisica e Vulcanologia (INGV); Helmholtz Association; Karlsruhe Institute of Technology; G d'Annunzio University of Chieti-Pescara
推荐引用方式 GB/T 7714	Lorenzi, V.,Banzato, F.,Barberio, M. D.,et al. Tracking flowpaths in a complex karst system through tracer test and hydrogeochemical monitoring: Implications for groundwater protection (Gran Sasso, Italy)[J],2024,10(2).
APA	Lorenzi, V..,Banzato, F..,Barberio, M. D..,Goldscheider, N..,Gori, F..,...&Petitta, M..(2024).Tracking flowpaths in a complex karst system through tracer test and hydrogeochemical monitoring: Implications for groundwater protection (Gran Sasso, Italy).HELIYON,10(2).
MLA	Lorenzi, V.,et al."Tracking flowpaths in a complex karst system through tracer test and hydrogeochemical monitoring: Implications for groundwater protection (Gran Sasso, Italy)".HELIYON 10.2(2024).