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Open AccessArticle

Reassessing Water Allocation Strategies and Conjunctive Use to Reduce Water Scarcity and Scarcity Costs for Irrigated Agriculture in Southern Brazil

1
Instituto de Pesquisas Hidráulicas IPH/UFRGS, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre/RS 91501-970, Brazil
2
Department of Civil and Environmental Engineering, University of California, Merced, 5200 Lake Road, Merced, CA 95340, USA
*
Author to whom correspondence should be addressed.
Water 2019, 11(6), 1140; https://doi.org/10.3390/w11061140
Received: 2 May 2019 / Revised: 23 May 2019 / Accepted: 27 May 2019 / Published: 30 May 2019
(This article belongs to the Special Issue Hydroeconomic Analysis for Sustainable Water Management)
The lack of adequate management programs alongside water resources overexploitation have led to undesirable effects such as water shortages and economic losses in several regions. Optimized water allocation strategies using groundwater and surface water resources could reduce water scarcity and scarcity costs by exploring the advantages and peculiarities of each source, thus reducing the effect of variability and uncertainties on water availability. The aim of this study is to assess economic water allocation and the potential of conjunctive use of surface water and groundwater operations using a hydro-economic model to evaluate scarcity and scarcity cost at an irrigated agricultural region in Southern Brazil. Results indicated the possibility to reduce but not entirely eliminate, water scarcity and scarcity cost based solely on the reallocation of water among users and crops, without generating water deficit to users downstream. Results also pointed to the elevated potential of groundwater use as a component to reduce scarcity and its costs, mainly through economic optimized strategies integrated with surface water. View Full-Text
Keywords: water resources management; conjunctive use; groundwater; hydro-economic model; water allocation; scarcity cost water resources management; conjunctive use; groundwater; hydro-economic model; water allocation; scarcity cost
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Mattiuzi, C.D.P.; Marques, G.F.; Medellín-Azuara, J. Reassessing Water Allocation Strategies and Conjunctive Use to Reduce Water Scarcity and Scarcity Costs for Irrigated Agriculture in Southern Brazil. Water 2019, 11, 1140.

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