Modelling water resources for planning irrigation development in drought-prone southern Chile

McNamara, Ian, Nauditt, Alexandra ORCID: 0000-0002-9780-5280, Zambrano-Bigiarini, Mauricio ORCID: 0000-0002-9536-643X, Ribbe, Lars ORCID: 0000-0003-3052-1782 and Hann, Hamish . Modelling water resources for planning irrigation development in drought-prone southern Chile. Int. J. Water Resour. Dev.. ABINGDON: ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD. ISSN 1360-0648

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DOI:10.1080/07900627.2020.1768828

Abstract

To foster poverty reduction in drought-prone Araucania, the Chilean Irrigation Commission is planning an important expansion of irrigated areas. Scenarios incorporating climate change (2030-2059) were simulated for a pilot basin using the WEAP water allocation model, showing that larger irrigated areas, coupled with higher temperatures and less precipitation, are likely to cause severe seasonal water scarcity. As decision support for the planning of effective measures to increase drought resilience, we modelled the construction of two upstream reservoirs combined with higher irrigation efficiency. We find that unmet water demand can be reduced by up to 97.7% by these measures.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
McNamara, Ian	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Nauditt, Alexandra	UNSPECIFIED	orcid.org/0000-0002-9780-5280	UNSPECIFIED
Zambrano-Bigiarini, Mauricio	UNSPECIFIED	orcid.org/0000-0002-9536-643X	UNSPECIFIED
Ribbe, Lars	UNSPECIFIED	orcid.org/0000-0003-3052-1782	UNSPECIFIED
Hann, Hamish	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED