Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems

Autores
Pereyra, Daniel A.; Bucci, Sandra Janet; Arias, Nadia Soledad; Ciano, Nicolas Francisco; Cristiano, Piedad María; Goldstein, Guillermo Hernan; Scholz, Fabian Gustavo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Grazing is the predominant land use practice in arid environments; however, there are relatively few studies of grazing effects on ecosystem functioning. We assessed the impact of grazing on soil moisture, evapotranspiration (ET), canopy conductance (Gc), and root water uptake in the Patagonian steppe. Studies were done in 3 sites along a gradient of grazing intensity. High grazing intensity increased the soil water storage by 24% and decreased the amount of water extracted from deep layers compared to the low grazing intensity. Grazing affected ET and its partitioning into transpiration (T) and evaporation. High shrub cover and Gc increased ET and T or ET partitioning in the heavily grazed site. Annual ET increased from 78% to 92% of the annual precipitation from the lowest to the highest grazing intensity, respectively. Total T was 21% higher in the highest intensity site compared to the lowest intensity site. Changes in Gc suggest that grazing modified the canopy architecture, and thus the response of vegetation to environmental factors. At the beginning of the growing season when moisture was high, Gc exhibited the highest value in the heavily grazed site, but a strong regulation of water losses was observed under drier conditions. This study emphasizes the need to assess simultaneously multiple factors for understanding regulatory mechanisms of grazing effects on hydrological processes. From a sustainable management point of view, we suggest that increasing the number of water sources, and thus spreading the sheep in a paddock, can enhance the stocking rate while maintaining soil water storage.
EEA Chubut
Fil: Pereyra, Daniel A. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Bucci, Sandra Janet. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Arias, Nadia Soledad. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Ciano, Nicolas Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Cristiano, Piedad María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina
Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. University Of Miami. Department of Biology; Estados Unidos.
Fil: Scholz, Fabian Gustavo. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fuente
Ecohydrology 10 (6) : e1850 (September 2017)
Materia
Pastoreo
Evapotranspiración
Agua del Suelo
Ecosistema
Zona Arida
Grazing
Evapotranspiration
Soil Water
Ecosystems
Arid Zones
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2930
Acceder
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oai_identifier_str oai:localhost:20.500.12123/2930
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystemsPereyra, Daniel A.Bucci, Sandra JanetArias, Nadia SoledadCiano, Nicolas FranciscoCristiano, Piedad MaríaGoldstein, Guillermo HernanScholz, Fabian GustavoPastoreoEvapotranspiraciónAgua del SueloEcosistemaZona AridaGrazingEvapotranspirationSoil WaterEcosystemsArid ZonesGrazing is the predominant land use practice in arid environments; however, there are relatively few studies of grazing effects on ecosystem functioning. We assessed the impact of grazing on soil moisture, evapotranspiration (ET), canopy conductance (Gc), and root water uptake in the Patagonian steppe. Studies were done in 3 sites along a gradient of grazing intensity. High grazing intensity increased the soil water storage by 24% and decreased the amount of water extracted from deep layers compared to the low grazing intensity. Grazing affected ET and its partitioning into transpiration (T) and evaporation. High shrub cover and Gc increased ET and T or ET partitioning in the heavily grazed site. Annual ET increased from 78% to 92% of the annual precipitation from the lowest to the highest grazing intensity, respectively. Total T was 21% higher in the highest intensity site compared to the lowest intensity site. Changes in Gc suggest that grazing modified the canopy architecture, and thus the response of vegetation to environmental factors. At the beginning of the growing season when moisture was high, Gc exhibited the highest value in the heavily grazed site, but a strong regulation of water losses was observed under drier conditions. This study emphasizes the need to assess simultaneously multiple factors for understanding regulatory mechanisms of grazing effects on hydrological processes. From a sustainable management point of view, we suggest that increasing the number of water sources, and thus spreading the sheep in a paddock, can enhance the stocking rate while maintaining soil water storage.EEA ChubutFil: Pereyra, Daniel A. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; ArgentinaFil: Bucci, Sandra Janet. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; ArgentinaFil: Arias, Nadia Soledad. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; ArgentinaFil: Ciano, Nicolas Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Cristiano, Piedad María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; ArgentinaFil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. University Of Miami. Department of Biology; Estados Unidos.Fil: Scholz, Fabian Gustavo. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina2018-07-31T15:11:06Z2018-07-31T15:11:06Z2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://onlinelibrary.wiley.com/doi/abs/10.1002/eco.1850http://hdl.handle.net/20.500.12123/29301936-05841936-0592https://doi.org/10.1002/eco.1850Ecohydrology 10 (6) : e1850 (September 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:22Zoai:localhost:20.500.12123/2930instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:23.131INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
title Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
spellingShingle Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
Pereyra, Daniel A.
Pastoreo
Evapotranspiración
Agua del Suelo
Ecosistema
Zona Arida
Grazing
Evapotranspiration
Soil Water
Ecosystems
Arid Zones
title_short Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
title_full Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
title_fullStr Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
title_full_unstemmed Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
title_sort Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
dc.creator.none.fl_str_mv Pereyra, Daniel A.
Bucci, Sandra Janet
Arias, Nadia Soledad
Ciano, Nicolas Francisco
Cristiano, Piedad María
Goldstein, Guillermo Hernan
Scholz, Fabian Gustavo
author Pereyra, Daniel A.
author_facet Pereyra, Daniel A.
Bucci, Sandra Janet
Arias, Nadia Soledad
Ciano, Nicolas Francisco
Cristiano, Piedad María
Goldstein, Guillermo Hernan
Scholz, Fabian Gustavo
author_role author
author2 Bucci, Sandra Janet
Arias, Nadia Soledad
Ciano, Nicolas Francisco
Cristiano, Piedad María
Goldstein, Guillermo Hernan
Scholz, Fabian Gustavo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Pastoreo
Evapotranspiración
Agua del Suelo
Ecosistema
Zona Arida
Grazing
Evapotranspiration
Soil Water
Ecosystems
Arid Zones
topic Pastoreo
Evapotranspiración
Agua del Suelo
Ecosistema
Zona Arida
Grazing
Evapotranspiration
Soil Water
Ecosystems
Arid Zones
dc.description.none.fl_txt_mv Grazing is the predominant land use practice in arid environments; however, there are relatively few studies of grazing effects on ecosystem functioning. We assessed the impact of grazing on soil moisture, evapotranspiration (ET), canopy conductance (Gc), and root water uptake in the Patagonian steppe. Studies were done in 3 sites along a gradient of grazing intensity. High grazing intensity increased the soil water storage by 24% and decreased the amount of water extracted from deep layers compared to the low grazing intensity. Grazing affected ET and its partitioning into transpiration (T) and evaporation. High shrub cover and Gc increased ET and T or ET partitioning in the heavily grazed site. Annual ET increased from 78% to 92% of the annual precipitation from the lowest to the highest grazing intensity, respectively. Total T was 21% higher in the highest intensity site compared to the lowest intensity site. Changes in Gc suggest that grazing modified the canopy architecture, and thus the response of vegetation to environmental factors. At the beginning of the growing season when moisture was high, Gc exhibited the highest value in the heavily grazed site, but a strong regulation of water losses was observed under drier conditions. This study emphasizes the need to assess simultaneously multiple factors for understanding regulatory mechanisms of grazing effects on hydrological processes. From a sustainable management point of view, we suggest that increasing the number of water sources, and thus spreading the sheep in a paddock, can enhance the stocking rate while maintaining soil water storage.
EEA Chubut
Fil: Pereyra, Daniel A. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Bucci, Sandra Janet. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Arias, Nadia Soledad. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
Fil: Ciano, Nicolas Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Cristiano, Piedad María. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina
Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología Funcional; Argentina. University Of Miami. Department of Biology; Estados Unidos.
Fil: Scholz, Fabian Gustavo. Universidad Nacional de la Patagonia San Juan Bosco. Grupo de Estudios Biofísicos y Eco‐fisiológicos (GEBEF); Argentina. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
description Grazing is the predominant land use practice in arid environments; however, there are relatively few studies of grazing effects on ecosystem functioning. We assessed the impact of grazing on soil moisture, evapotranspiration (ET), canopy conductance (Gc), and root water uptake in the Patagonian steppe. Studies were done in 3 sites along a gradient of grazing intensity. High grazing intensity increased the soil water storage by 24% and decreased the amount of water extracted from deep layers compared to the low grazing intensity. Grazing affected ET and its partitioning into transpiration (T) and evaporation. High shrub cover and Gc increased ET and T or ET partitioning in the heavily grazed site. Annual ET increased from 78% to 92% of the annual precipitation from the lowest to the highest grazing intensity, respectively. Total T was 21% higher in the highest intensity site compared to the lowest intensity site. Changes in Gc suggest that grazing modified the canopy architecture, and thus the response of vegetation to environmental factors. At the beginning of the growing season when moisture was high, Gc exhibited the highest value in the heavily grazed site, but a strong regulation of water losses was observed under drier conditions. This study emphasizes the need to assess simultaneously multiple factors for understanding regulatory mechanisms of grazing effects on hydrological processes. From a sustainable management point of view, we suggest that increasing the number of water sources, and thus spreading the sheep in a paddock, can enhance the stocking rate while maintaining soil water storage.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
2018-07-31T15:11:06Z
2018-07-31T15:11:06Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://onlinelibrary.wiley.com/doi/abs/10.1002/eco.1850
http://hdl.handle.net/20.500.12123/2930
1936-0584
1936-0592
https://doi.org/10.1002/eco.1850
url https://onlinelibrary.wiley.com/doi/abs/10.1002/eco.1850
http://hdl.handle.net/20.500.12123/2930
https://doi.org/10.1002/eco.1850
identifier_str_mv 1936-0584
1936-0592
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Ecohydrology 10 (6) : e1850 (September 2017)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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