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Author: search.filters.author.Esteban Arias MontevechioHas files: No

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    Water Security and Multi-Sector Trade-Offs Under Climate Change: A Hydro-Economic Model for the Biobío River Basin, Chile
    (World Scientific Pub Co Pte Ltd, 2025-03-29)
    Francisco Fernández Jorquera
    ;
    Esteban Arias Montevechio
    ;
    María Victoria Ferrera Cordero
    ;
    Mauricio Leiva
    ;
    Pablo S. González
    Water availability has been declining in recent years due to climate change. These decreases, in conjunction with rising temperatures and environmental changes, affect the behavior of various stakeholders, increasing the competition among water-consuming sectors to obtain this limited resource. In this study, we perform a hydro-economic model to analyze how the agricultural and residential sectors adapt to diverse climatic, social and regulation changes, using the Biobío basin in southern Chile as the case study. The model quantifies their economic welfare derived from using water as an input for their cropping activities and direct consumption, respectively, while maintaining environmental flows, rural drinking water, and supporting tourism activities. Furthermore, we assess the economic effects of increasing water security for the environment and tourism sectors. Results show that climate change and water security policies will have heterogeneous effects on water-consuming agents across different basin levels — higher-, medium-, and lower-basin levels — with the greatest effects being addressed by the higher-level basin. This heterogeneity is observed not only within the basin levels but also across economic sectors, being the agricultural sector significantly more affected by these policies than the residential sector. We conclude our analysis by suggesting that policymakers should tailor compensation measures to the most affected communities. </jats:p>
    Scopus© Citations 1  6
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      8Scopus© Citations 6
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    Traditional crops and climate change adaptation: insights from the Andean agricultural sector
    (2023)
    Esteban Arias Montevechio
    ;
    Marianella Crispin Cunya
    ;
    Francisco Fernández Jorquera
    ;
    Eric Rendon
    ;
    VÁSQUEZ LAVÍN , FELIPE ANTONIO  
    Scopus© Citations 9  7
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    Nexus Thinking at River Basin Scale: Food, Water and Welfare
    (2021)
    PONCE OLIVA, ROBERTO DANIEL  
    ;
    Francisco J. Fernández
    ;
    VÁSQUEZ LAVÍN , FELIPE ANTONIO  
    ;
    Esteban Arias Montevechio
    ;
    Natalia Julio
    <jats:p>Water resources face an unparalleled confluence of pressures, with agriculture and urban growth as the most relevant human-related stressors. In this context, methodologies using a Nexus framework seem to be suitable to address these challenges. However, the urban sector has been commonly ignored in the Nexus literature. We propose a Nexus framework approach, considering the economic dimensions of the interdependencies and interconnections among agriculture (food production) and the urban sector as water users within a common basin. Then, we assess the responses of both sectors to climatic and demographic stressors. In this setting, the urban sector is represented through an economic water demand at the household level, from which economic welfare is derived. Our results show that the Nexus components here considered (food, water, and welfare) will be negatively affected under the simulated scenarios. However, when these components are decomposed to their particular elements, we found that the less water-intensive sector—the urban sector—will be better off since food production will leave significant amounts of water available. Moreover, when addressing uncertainty related to climate-induced shocks, we could identify the basin resilience threshold. Our approach shows the compatibilities and divergences between food production and the urban sector under the Nexus framework.</jats:p>
    Scopus© Citations 2  1