Projected impacts of climate change on water availability indicators in a semi-arid region of central Mexico

Herrera-Pantoja, M. and Hiscock, K. M. ORCID: (2015) Projected impacts of climate change on water availability indicators in a semi-arid region of central Mexico. Environmental Science and Policy, 54. pp. 81-89. ISSN 1462-9011

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In many arid and semi-arid regions of the world, the scarcity of water resources, increasing population and the experience of recent droughts are exerting great pressures on water resources. Climate change is anticipated to exacerbate the vulnerability of water resources, which clearly highlights the need for developing sustainable water management policies and appropriate adaptation strategies. In this paper, the likely impact of climate change on water availability indicators in a semiarid region is explored through a case study in a developing country. Queretaro River Basin (QRB. ) in Central Mexico, is presented as an example of a semi-arid region that is facing growing pressures on the availability of water resources to sustainably meet social, economic and ecological needs. The output of seven downscaled Global Coupled Ocean-Atmosphere General Circulation Models (AOGCMs) for the B1 and A1B greenhouse gas emissions scenarios (GHGES) were used to investigate the likely impacts of climate change on water resources in the QRB. The computed future scenarios of climate change predict that increases in mean annual temperature ranging from 0.8. °C to 4.8. °C and decreases in mean annual precipitation ranging from 17% to 22% could result in a decline of up to 9.16% in the available water for groundwater recharge and runoff by the end of the 21st century. Results also suggest that for the future, both dry and wet events will become more severe and frequent, increasing the vulnerability of water resources and compromising sustainability. Therefore, it is advisable that water management planning considers flexible adaptation strategies in order to allow for adjustment under different scenarios of water availability, if the implementation of unbiased, efficient and economical water resources strategies is to enhance sustainability and resilience to climate change in the long-term.

Item Type: Article
Additional Information: Publisher Copyright: © 2015 Elsevier Ltd.
Uncontrolled Keywords: climate change,indicators,semi-arid,vulnerability,water availability,geography, planning and development,management, monitoring, policy and law,sdg 13 - climate action ,/dk/atira/pure/subjectarea/asjc/3300/3305
Faculty \ School: Faculty of Science > School of Environmental Sciences
UEA Research Groups: Faculty of Social Sciences > Research Centres > Water Security Research Centre
Faculty of Science > Research Groups > Geosciences
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Depositing User: LivePure Connector
Date Deposited: 11 Oct 2022 10:31
Last Modified: 13 Apr 2023 14:34
DOI: 10.1016/j.envsci.2015.06.020

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