Decline in Iran's groundwater recharge.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
21 Oct 2023
21 Oct 2023
Historique:
received:
20
02
2023
accepted:
11
10
2023
medline:
22
10
2023
pubmed:
22
10
2023
entrez:
21
10
2023
Statut:
epublish
Résumé
Groundwater recharge feeds aquifers supplying fresh-water to a population over 80 million in Iran-a global hotspot for groundwater depletion. Using an extended database comprising abstractions from over one million groundwater wells, springs, and qanats, from 2002 to 2017, here we show a significant decline of around -3.8 mm/yr in the nationwide groundwater recharge. This decline is primarily attributed to unsustainable water and environmental resources management, exacerbated by decadal changes in climatic conditions. However, it is important to note that the former's contribution outweighs the latter. Our results show the average annual amount of nationwide groundwater recharge (i.e., ~40 mm/yr) is more than the reported average annual runoff in Iran (i.e., ~32 mm/yr), suggesting the surface water is the main contributor to groundwater recharge. Such a decline in groundwater recharge could further exacerbate the already dire aquifer depletion situation in Iran, with devastating consequences for the country's natural environment and socio-economic development.
Identifiants
pubmed: 37865681
doi: 10.1038/s41467-023-42411-2
pii: 10.1038/s41467-023-42411-2
pmc: PMC10590393
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6674Informations de copyright
© 2023. Springer Nature Limited.
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