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Ingeniería agrícola y biosistemas
versão On-line ISSN 2007-4026versão impressa ISSN 2007-3925
Resumo
CRUZ-GONZALEZ, Alejandro et al. Hydrologic modeling to measure the impact of climate change in the Yaqui River basin. Ing. agric. biosist. [online]. 2021, vol.13, n.1, pp.77-94. Epub 13-Jun-2022. ISSN 2007-4026. https://doi.org/10.5154/r.inagbi.2021.02.040.
Introduction:
Changes in climate patterns threaten water security of the population and its economic activities.
Objective:
To model and analyze the behavior of surface runoff in the Yaqui river basin under climate change scenarios.
Methodology:
Representative concentration pathways (RCP) of three sub-basins (La Angostura, El Novillo and El Oviachic) were shown using hydrologic modeling with SWAT, where the simulated variable was surface runoff.
Results:
A change in water availability of -67 % is expected in La Angostura for the period 2021-2040 (RCP2.6) and an increase of 60 % from 2041-2060 (RCP8.5), in El Novillo a decrease of 65 % is predicted for the period 2061-2080 (RCP4. 5) and a 42 % increase from 2061-2080 (RCP2.6), and in El Oviachic a 63 % decrease is predicted for the period 2041-2060 (RCP2.6 and 4.5) and a 47 % increase from 2041-2060 (RCP4.5).
Limitations:
Veracity and impact of basins studies depend on quality hydro-climatic information of unrestricted availability.
Originality:
The impact of climate change on the availability of water for agricultural use in the Yaqui River basin was projected. In addition, there is a technological platform for planning processes.
Conclusions:
The data collected can be used to generate adaptation and mitigation strategies for efficient water use in the basin and to propose long-term sustainable management alternatives.
Palavras-chave : SWAT model; RCP; surface runoff.