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Impact of high-density managed aquifer recharge implementation on groundwater storage, food production and resilience: a case from Gujarat, India

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Title Impact of high-density managed aquifer recharge implementation on groundwater storage, food production and resilience: a case from Gujarat, India
 
Creator Alam, Mohammad Faiz
Pavelic, Paul
Villholth, Karen G.
Sikka, Alok
Pande, S.
 
Subject groundwater recharge
aquifers
water storage
food production
resilience
check dams
irrigation water
drought
groundwater extraction
catchment areas
 
Description Study region: The study region is the Kamadhiya catchment (1150 km2 ), located in the Saurashtra region of the western state of Gujarat, India. The region has seen intensive development of check dams (CDs) for groundwater recharge with an estimated 27,000 CDs constructed up until 2018.
Study focus: The impact of CDs on groundwater storage, food production and resilience are assessed for Kamadhiya catchment by estimating and comparing changes, across periods of low and high CD development, in potential recharge from CDs, rainfall trends, and irrigation demand. The analysis is carried out for the period from 1983 to 2015.
New hydrological insights for the region: Groundwater storage gains observed following CD development can partly be attributed to an increase in high rainfall years after several drought years. Groundwater demand for irrigation has increased substantially, outweighing increase in groundwater recharge from CDs. This deficit in supply relative to demand is greatest in dry years, and when considered together with the low inter-annual carry-over storage of the region’s hardrock aquifers, means that CDs capacity to enhance groundwater storage and mitigate the negative impacts of drought remains limited. Findings suggest that a standalone focus on MAR, unless complemented by greater emphasis on management of water demand and groundwater resources more broadly, may not be sufficient to achieve the long-term goals of sustainable groundwater and concurrently expanding agricultural crop production.
 
Date 2022-12
2022-10-31T21:19:51Z
2022-10-31T21:19:51Z
 
Type Journal Article
 
Identifier Alam, Mohammad Faiz; Pavelic, Paul; Villholth, Karen G.; Sikka, Alok; Pande, S. 2022. Impact of high-density managed aquifer recharge implementation on groundwater storage, food production and resilience: a case from Gujarat, India. Journal of Hydrology: Regional Studies, 44:101224. [doi: https://doi.org/10.1016/j.ejrh.2022.101224]
2214-5818
https://hdl.handle.net/10568/125243
https://www.sciencedirect.com/science/article/pii/S2214581822002373/pdfft?md5=c1fe49c8b8dc5d53185c2930bd9299ea&pid=1-s2.0-S2214581822002373-main.pdf
https://doi.org/10.1016/j.ejrh.2022.101224
H051497
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 44:101224
 
Publisher Elsevier BV
 
Source Journal of Hydrology: Regional Studies