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Shifting dry spells in Central Chile: Implications for agriculturalwater planning

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dc.contributor.authorLatoja, Daniela
dc.contributor.authorRivera, Diego
dc.contributor.authorLillo, Mario
dc.contributor.authorGodoy-Faúndez, Alex
dc.date.accessioned2026-10-07T14:17:35Z
dc.date.available2026-10-07T14:17:35Z
dc.date.issued2025
dc.description.abstractChile’s agricultural production occurs in a highly variable Mediterranean climate and faces declining annual precipitation trends as well as growing competition from other uses. Water availability for agriculture depends on winter precipitation; however, a more even distribution of precipitation throughout the year would better support agricultural planning and management. We examine the occurrence, frequency, and trends of dry spells in Central Chile (32˚–40˚ S) as a proxy for changes in the timing of dry-wet seasons, using a gridded daily precipitation dataset spanning the period from 1960 to 2021. Our results indicate a significant increase in dry spells (+1 event/decade), but shorter (−2 days/event), and a significant decrease in precipitation per wet spell (−2 mm/event/decade). Findings suggest that changes in dry spells should also be considered in planning and policy, as some regions may be experiencing water shortages due to shifts in timing and access, rather than simply having less water. Plain Language Summary Chile’s agriculture occurs in a region with variable precipitation and temperature year-to-year. Water for farming mainly comes from winter precipitation, but better year-round distribution is needed for effective planning. We analyzed the occurrence of consecutive dry days during the fall-winter and spring-summer seasons. We found that there has been an increase in dry spells, as well as a decrease in precipitation volume per wet spell. Changes in dry spells should be considered in agricultural planning and policy, as some regions may face water shortages due to timing and access issues, in addition to reduced water availability.
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dc.identifier.citationLatoja, D., Rivera, D., Lillo, M., & Godoy‐Faúndez, Á. (2025). Shifting dry spells in Central Chile: Implications for agricultural water planning. Agricultural & Environmental Letters, 10(2), e70037. https://doi.org/10.1002/ael2.70037
dc.identifier.doihttps://doi.org/10.1002/ael2.70037
dc.identifier.urihttps://hdl.handle.net/11447/11242
dc.language.isoen
dc.titleShifting dry spells in Central Chile: Implications for agriculturalwater planning
dc.typeArticle
dcterms.accessRightsAcceso Abierto
dcterms.sourceAgricultural & Environmental Letters
dspace.entity.typePublication
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relation.isAuthorOfPublicationbb995210-cbc4-44e2-b078-35c1effbbeb1
relation.isAuthorOfPublication.latestForDiscoveryb969c47a-6a58-4b2a-ae6d-17e6e1fb792d

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