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Water crisis in Petorca basin, Chile: The combined effects of a mega-drought and water management

Artículo de revista
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Editorial
MDPI
Date
2020
Cómo citar
...
Metadata
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Abstract
Since 2010, Chile has experienced one of the most severe droughts over the last century, the so-called mega-drought (MD). The MD conditions, combined with intensive agricultural activities and the current water management system, have led to water scarcity problems in Mediterranean and Semi-arid regions of Chile. An emblematic case is the Petorca basin, where a water crisis is undergone. To characterize this crisis, we analyzed water provision by using tree-ring records, remote sensing, instrumental data, and allocated water rights within the basin. Results indicate that the MD is the most severe dry period over the last 700-years of streamflow reconstruction. During the MD, streamflow and water bodies of the upper parts of the basin have been less affected than mid and low areas of this valley, where consumptive withdrawals reach up to 18% of the mean annual precipitation. This extracted volume is similar to the MD mean annual precipitation deficits. The impacts of the current drought, along with the drier climate projections for Central Chile, emphasize the urgency for faster policy changes related to water provision. Climate change adaptation plans and policies should enhance the current monitoring network and the public control of water use to secure the water access for inhabitants and productive activities.
Materias
Drought
Conflicts for water
Streamflow reconstruction
Water access
Water scarcity
Water management
Climate change
Origen
Water 2020, 12, 648
10.3390/w12030648
https://repositorio.uchile.cl/handle/2250/175602
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  • Universidad de Chile. Facultad de Ciencias Forestales

Documento no disponible en formato digital. Consultar en biblioteca INFOR: Contacto

Licencia Creative CommonsExcepto si se señala otra cosa, la licencia del ítem se describe como Licencia Creative Commons Atribución-NoComercial-SinDerivar 4.0 Internacional

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DIRECCIÓN EJECUTIVA
Calle Nueva Uno N°3570 Lt. 4 Michaihue -
San Pedro de La Paz, Concepción
(56-41) 285 32 60
SEDE METROPOLITANA
Sucre 2397, Ñuñoa, Santiago
(56-2) 2366 71 20
SEDE DIAGUITAS
Juan Georgini Runi 1507, La Serena
(56-51) 236 26 00
OFICINA CHILOÉ
Pasaje Los Queltehues s/n, sector de Putemun, Castro
(56-65) 263 65 74
SEDE BIOBÍO
Calle Nueva Uno N°3570 Lt. 4 Michaihue – San Pedro de La Paz, Concepción
(56-41) 285 32 60
SEDE LOS RÍOS
Fundo Teja Norte s/n. Valdivia
(56-63) 233 52 00
SEDE PATAGONIA
Camino Coyhaique Alto Km. 4,5. Coyhaique
(56-67) 226 25 00

Volver arriba

Biblioteca digital - Instituto Forestal

MESA CENTRAL +56 2 25192800

 

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The Chilean Forestry Institute´s digital library provides information on the forestry sector in Chile and the world. This library has over than 21.000 titles compiled from the decade of the 60 onwards. Numerous studies are part of this large bibliographic collection, being part of the INFOR and the Chilean forestry sector historical heritage.

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