Impacts of land use on the hydrological response of tropical Andean catchments

Changes in land use and land cover are major drivers of hydrological alteration in the tropical Andes. However, quantifying their impacts is fraught with difficulties because of the extreme diversity in meteorological boundary conditions, which contrasts strongly with the lack of knowledge about loc...

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Autores: Celleri Alvear, Rolando Enrique, Crespo Sanchez, Patricio Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Ecuador
Institución:Universidad de Cuenca
Repositorio:Repositorio Universidad de Cuenca
OAI Identifier:oai:dspace.ucuenca.edu.ec:123456789/29038
Acceso en línea:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983741050&doi=10.1002%2fhyp.10980&partnerID=40&md5=b45c609abf04131eba896213bb688807
http://dspace.ucuenca.edu.ec/handle/123456789/29038
Access Level:acceso abierto
Palabra clave:Andes
Hydrological Response
Indices
Jalca
Land Use
Lucc
Puna
Páramo
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spelling Impacts of land use on the hydrological response of tropical Andean catchmentsCelleri Alvear, Rolando EnriqueCrespo Sanchez, Patricio JavierAndesHydrological ResponseIndicesJalcaLand UseLuccPunaPáramoChanges in land use and land cover are major drivers of hydrological alteration in the tropical Andes. However, quantifying their impacts is fraught with difficulties because of the extreme diversity in meteorological boundary conditions, which contrasts strongly with the lack of knowledge about local hydrological processes. Although local studies have reduced data scarcity in certain regions, the complexity of the tropical Andes poses a big challenge to regional hydrological prediction. This study analyses data generated from a participatory monitoring network of 25 headwater catchments covering three of the major Andean biomes (páramo, jalca and puna) and links their hydrological responses to main types of human interventions (cultivation, afforestation and grazing). A paired catchment setup was implemented to evaluate the impacts of change using a ‘trading space-for-time’ approach. Catchments were selected based on regional representativeness and contrasting land use types. Precipitation and discharge have been monitored and analysed at high temporal resolution for a time period between 1 and 5 years. The observed catchment responses clearly reflect the extraordinarily wide spectrum of hydrological processes of the tropical Andes. They range from perennially humid páramos in Ecuador and northern Peru with extremely large specific discharge and baseflows, to highly seasonal, flashy catchments in the drier punas of southern Peru and Bolivia. The impacts of land use are similarly diverse and their magnitudes are a function of catchment properties, original and replacement vegetation and management type. Cultivation and afforestation consistently affect the entire range of discharges, particularly low flows. The impacts of grazing are more variable but have the largest effect on the catchment hydrological regulation. Overall, anthropogenic interventions result in increased streamflow variability and significant reductions in catchment regulation capacity and water yield, irrespective of the hydrological properties of the original biome. Copyright © 2016 The Authors. Hydrological Processes. Published by John Wiley & Sons Ltd.JOHN WILEY AND SONS LTD2018-01-11T16:47:13Z2018-01-11T16:47:13Z2016-10-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf8856087https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983741050&doi=10.1002%2fhyp.10980&partnerID=40&md5=b45c609abf04131eba896213bb688807http://dspace.ucuenca.edu.ec/handle/123456789/2903810.1002/hyp.10980Hydrological Processesreponame:Repositorio Universidad de Cuencainstname:Universidad de Cuencainstacron:UCUENCAen_USinfo:eu-repo/semantics/openAccess2020-08-01T01:14:35Zoai:dspace.ucuenca.edu.ec:123456789/29038Institucionalhttp://dspace.ucuenca.edu.ec/Universidad públicahttps://www.ucuenca.edu.ec/http://dspace.ucuenca.edu.ec/oai.Ecuador...opendoar:41862020-08-01T01:14:35Repositorio Universidad de Cuenca - Universidad de Cuencafalse
dc.title.none.fl_str_mv Impacts of land use on the hydrological response of tropical Andean catchments
title Impacts of land use on the hydrological response of tropical Andean catchments
spellingShingle Impacts of land use on the hydrological response of tropical Andean catchments
Celleri Alvear, Rolando Enrique
Andes
Hydrological Response
Indices
Jalca
Land Use
Lucc
Puna
Páramo
title_short Impacts of land use on the hydrological response of tropical Andean catchments
title_full Impacts of land use on the hydrological response of tropical Andean catchments
title_fullStr Impacts of land use on the hydrological response of tropical Andean catchments
title_full_unstemmed Impacts of land use on the hydrological response of tropical Andean catchments
title_sort Impacts of land use on the hydrological response of tropical Andean catchments
dc.creator.none.fl_str_mv Celleri Alvear, Rolando Enrique
Crespo Sanchez, Patricio Javier
author Celleri Alvear, Rolando Enrique
author_facet Celleri Alvear, Rolando Enrique
Crespo Sanchez, Patricio Javier
author_role author
author2 Crespo Sanchez, Patricio Javier
author2_role author
dc.subject.none.fl_str_mv Andes
Hydrological Response
Indices
Jalca
Land Use
Lucc
Puna
Páramo
topic Andes
Hydrological Response
Indices
Jalca
Land Use
Lucc
Puna
Páramo
description Changes in land use and land cover are major drivers of hydrological alteration in the tropical Andes. However, quantifying their impacts is fraught with difficulties because of the extreme diversity in meteorological boundary conditions, which contrasts strongly with the lack of knowledge about local hydrological processes. Although local studies have reduced data scarcity in certain regions, the complexity of the tropical Andes poses a big challenge to regional hydrological prediction. This study analyses data generated from a participatory monitoring network of 25 headwater catchments covering three of the major Andean biomes (páramo, jalca and puna) and links their hydrological responses to main types of human interventions (cultivation, afforestation and grazing). A paired catchment setup was implemented to evaluate the impacts of change using a ‘trading space-for-time’ approach. Catchments were selected based on regional representativeness and contrasting land use types. Precipitation and discharge have been monitored and analysed at high temporal resolution for a time period between 1 and 5 years. The observed catchment responses clearly reflect the extraordinarily wide spectrum of hydrological processes of the tropical Andes. They range from perennially humid páramos in Ecuador and northern Peru with extremely large specific discharge and baseflows, to highly seasonal, flashy catchments in the drier punas of southern Peru and Bolivia. The impacts of land use are similarly diverse and their magnitudes are a function of catchment properties, original and replacement vegetation and management type. Cultivation and afforestation consistently affect the entire range of discharges, particularly low flows. The impacts of grazing are more variable but have the largest effect on the catchment hydrological regulation. Overall, anthropogenic interventions result in increased streamflow variability and significant reductions in catchment regulation capacity and water yield, irrespective of the hydrological properties of the original biome. Copyright © 2016 The Authors. Hydrological Processes. Published by John Wiley & Sons Ltd.
publishDate 2016
dc.date.none.fl_str_mv 2016-10-30
2018-01-11T16:47:13Z
2018-01-11T16:47:13Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 8856087
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983741050&doi=10.1002%2fhyp.10980&partnerID=40&md5=b45c609abf04131eba896213bb688807
http://dspace.ucuenca.edu.ec/handle/123456789/29038
10.1002/hyp.10980
identifier_str_mv 8856087
10.1002/hyp.10980
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983741050&doi=10.1002%2fhyp.10980&partnerID=40&md5=b45c609abf04131eba896213bb688807
http://dspace.ucuenca.edu.ec/handle/123456789/29038
dc.language.none.fl_str_mv en_US
language_invalid_str_mv en_US
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv JOHN WILEY AND SONS LTD
publisher.none.fl_str_mv JOHN WILEY AND SONS LTD
dc.source.none.fl_str_mv Hydrological Processes
reponame:Repositorio Universidad de Cuenca
instname:Universidad de Cuenca
instacron:UCUENCA
instname_str Universidad de Cuenca
instacron_str UCUENCA
institution UCUENCA
reponame_str Repositorio Universidad de Cuenca
collection Repositorio Universidad de Cuenca
repository.name.fl_str_mv Repositorio Universidad de Cuenca - Universidad de Cuenca
repository.mail.fl_str_mv .
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