Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile

Background: Forest ecosystems provide services that are important for human use; one of the most critical ecosystem services is the provision and regulation of water. Basins with high forest improves hydrological functionality by promoting reduction in surface runoff, increase infiltration and aquif...

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Autores principales:	Carlos Esse, Ney Ríos, Pablo Saavedra, David Fonseca, Francisco Encina-Montoya, Rodrigo Santander-Massa, Patricio De los Ríos-Escalante, Guillermo Figueroa-Muñoz, Adolfo López-Pérez, Francisco Correa-Araneda
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Land use Land cover Native forest Mixed forest SWAT Clear-cutting Science (General) Q1-390
Acceso en línea:	https://doaj.org/article/5d05ad52e8f74a688bc52bae5f68821c
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spelling	oai:doaj.org-article:5d05ad52e8f74a688bc52bae5f68821c2021-11-18T04:44:25ZEffects of land use change on water availability and water efficiency in the temperate basins of south-central Chile1018-364710.1016/j.jksus.2021.101650https://doaj.org/article/5d05ad52e8f74a688bc52bae5f68821c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1018364721003128https://doaj.org/toc/1018-3647Background: Forest ecosystems provide services that are important for human use; one of the most critical ecosystem services is the provision and regulation of water. Basins with high forest improves hydrological functionality by promoting reduction in surface runoff, increase infiltration and aquifer recharge, and ensures base flow regulation amongst others. On the other hand, the conversion towards highly anthropized productive systems is usually accompanied by precarious environmental management that alters the hydrological cycle and reduction in water quality in basins. Aim: The goal of this study was to analyze land use changes and their effect on water efficiency index (WEI) in three sub-basins. Methodology: The methodology included a multi-temporal analysis of satellite images to identify land uses, also the use of SWAT (Soil and Water Assessment Tool) model for hydrological analysis in each sub-basin, information needed for calculating the WEI. Results: The results revealed the existence of no significant difference in terms of WEI between the sub-basins with predominant tree cover of native or artificial, being higher (0.89) than the WEI values reported by the sub-basin with agricultural land use (0.65). It is concluded that hydrological functions are more efficient in basins with forest cover, made up of native or exotic species, than agricultural land use with annual crop rotations. The results contribute to decision making on public policies associated to the rural productive activities. Concluded: Finally, we conclude the necessity of the promotion of forest plantation management techniques that avoid clear-cutting and multiple rotations in basin headwaters and riparian areas.Carlos EsseNey RíosPablo SaavedraDavid FonsecaFrancisco Encina-MontoyaRodrigo Santander-MassaPatricio De los Ríos-EscalanteGuillermo Figueroa-MuñozAdolfo López-PérezFrancisco Correa-AranedaElsevierarticleLand useLand coverNative forestMixed forestSWATClear-cuttingScience (General)Q1-390ENJournal of King Saud University: Science, Vol 33, Iss 8, Pp 101650- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Land use Land cover Native forest Mixed forest SWAT Clear-cutting Science (General) Q1-390
spellingShingle	Land use Land cover Native forest Mixed forest SWAT Clear-cutting Science (General) Q1-390 Carlos Esse Ney Ríos Pablo Saavedra David Fonseca Francisco Encina-Montoya Rodrigo Santander-Massa Patricio De los Ríos-Escalante Guillermo Figueroa-Muñoz Adolfo López-Pérez Francisco Correa-Araneda Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
description	Background: Forest ecosystems provide services that are important for human use; one of the most critical ecosystem services is the provision and regulation of water. Basins with high forest improves hydrological functionality by promoting reduction in surface runoff, increase infiltration and aquifer recharge, and ensures base flow regulation amongst others. On the other hand, the conversion towards highly anthropized productive systems is usually accompanied by precarious environmental management that alters the hydrological cycle and reduction in water quality in basins. Aim: The goal of this study was to analyze land use changes and their effect on water efficiency index (WEI) in three sub-basins. Methodology: The methodology included a multi-temporal analysis of satellite images to identify land uses, also the use of SWAT (Soil and Water Assessment Tool) model for hydrological analysis in each sub-basin, information needed for calculating the WEI. Results: The results revealed the existence of no significant difference in terms of WEI between the sub-basins with predominant tree cover of native or artificial, being higher (0.89) than the WEI values reported by the sub-basin with agricultural land use (0.65). It is concluded that hydrological functions are more efficient in basins with forest cover, made up of native or exotic species, than agricultural land use with annual crop rotations. The results contribute to decision making on public policies associated to the rural productive activities. Concluded: Finally, we conclude the necessity of the promotion of forest plantation management techniques that avoid clear-cutting and multiple rotations in basin headwaters and riparian areas.
format	article
author	Carlos Esse Ney Ríos Pablo Saavedra David Fonseca Francisco Encina-Montoya Rodrigo Santander-Massa Patricio De los Ríos-Escalante Guillermo Figueroa-Muñoz Adolfo López-Pérez Francisco Correa-Araneda
author_facet	Carlos Esse Ney Ríos Pablo Saavedra David Fonseca Francisco Encina-Montoya Rodrigo Santander-Massa Patricio De los Ríos-Escalante Guillermo Figueroa-Muñoz Adolfo López-Pérez Francisco Correa-Araneda
author_sort	Carlos Esse
title	Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
title_short	Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
title_full	Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
title_fullStr	Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
title_full_unstemmed	Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile
title_sort	effects of land use change on water availability and water efficiency in the temperate basins of south-central chile
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5d05ad52e8f74a688bc52bae5f68821c
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Effects of land use change on water availability and water efficiency in the temperate basins of south-central Chile

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