Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands
- Autores
- Bondaruk, Viviana F.; Oñatibia, Gastón Rafael; Fernández, Roberto J.; Agüero, Walter Damian; Blanco, Lisandro Javier; Bruschetti, Martín; Kröpfl, Alicia; Loydi, Alejandro; Pascual, Jesús; Peri, Pablo Luis; Peter, Guadalupe; Quiroga, Raul Emiliano; Yahdjian, Laura
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión aceptada
- Descripción
- Droughts are projected to increase in magnitude, frequency and duration in the near future. In rangelands, the provision of valuable ecosystem services such as forage supply for livestock productivity is intimately linked to rainfall patterns, which makes it particularly vulnerable to droughts. Nonetheless, rangelands can differ in their sensitivity to droughts as shown by strong differences in the impacts of inter-annual precipitation changes on vegetation productivity in different sites. The aim of this study was to assess the sensitivity to droughts of nine rangelands located across a broad aridity gradient in Argentina, South America. We experimentally imposed comparable droughts under field conditions by reducing a fixed proportion of each incoming precipitation event within-year during three consecutive years and tracked changes in total aboveground and forage productivity. We found that arid and semi-arid rangelands were more severely impaired in their forage provision by drought than mesic rangelands, i. e. that sensitivity to drought declined as aridity decreased. Forage productivity decreased on average by ca. 50%, in arid and semi-arid rangelands, whereas mesic sites did not exhibit significant changes between drought and control treatments. The negative impact in forage productivity of arid and semi-arid rangelands was mainly driven by the productivity reduction of few key plant species at each site. In seven of the nine rangelands, we found detrimental effects of drought on forage productivity during the first experimental-drought year, and in five of them the impact was further accentuated until the end of the experiment, which indicates how serious can these events be. Synthesis and applications: Our main findings indicate that the drought-induced impacts on forage provision are higher as aridity increases. This pattern highlights the urgent need to implement strategies to mitigate the detrimental consequences of drought, particularly in arid and semiarid rangelands, where forage provision is strongly associated with human well-being. Management approaches focused on key forage species, such as reducing the grazing pressure during drought periods according to these species’ productivity dynamics, can attenuate impacts on vulnerable ecosystems, preserving the rangelands’ integrity while maintaining high long-term productivity levels.
EEA La Rioja
Fil: Bondaruk, Viviana F. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina
Fil: Oñatibia, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina
Fil: Fernández, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina
Fil: Agüero, Walter Damian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina
Fil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina
Fil: Brusquetti, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Brusquetti, Martín. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Kröpfl, Alicia. Universidad Nacional de Río Negro; Argentina
Fil: Kröpfl, Alicia. Universidad Nacional del Comahue. Centro Universitario Regional Zona Atlántica (CURZA); Argentina
Fil: Loydi, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Loydi, Alejandro. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Pascual, Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Pascual, Jesús. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Peter, Guadalupe. Universidad Nacional de Río Negro; Argentina
Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Peter, Guadalupe. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina
Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina - Fuente
- Journal of Applied Ecology (First published: 28 June 2022)
- Materia
-
Tierras de Pastos
Pastizales
Sequía
Forrajes
Zona Arida
Zona Semiárida
Rangelands
Pastures
Drought
Forage
Arid Zones
Semiarid Zones - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
.jpg)
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/12218
Ver los metadatos del registro completo
| id |
INTADig_0ad81c5a12defb07fe67f7ed9b0f7080 |
|---|---|
| oai_identifier_str |
oai:localhost:20.500.12123/12218 |
| network_acronym_str |
INTADig |
| repository_id_str |
l |
| network_name_str |
INTA Digital (INTA) |
| spelling |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelandsBondaruk, Viviana F.Oñatibia, Gastón RafaelFernández, Roberto J.Agüero, Walter DamianBlanco, Lisandro JavierBruschetti, MartínKröpfl, AliciaLoydi, AlejandroPascual, JesúsPeri, Pablo LuisPeter, GuadalupeQuiroga, Raul EmilianoYahdjian, LauraTierras de PastosPastizalesSequíaForrajesZona AridaZona SemiáridaRangelandsPasturesDroughtForageArid ZonesSemiarid ZonesDroughts are projected to increase in magnitude, frequency and duration in the near future. In rangelands, the provision of valuable ecosystem services such as forage supply for livestock productivity is intimately linked to rainfall patterns, which makes it particularly vulnerable to droughts. Nonetheless, rangelands can differ in their sensitivity to droughts as shown by strong differences in the impacts of inter-annual precipitation changes on vegetation productivity in different sites. The aim of this study was to assess the sensitivity to droughts of nine rangelands located across a broad aridity gradient in Argentina, South America. We experimentally imposed comparable droughts under field conditions by reducing a fixed proportion of each incoming precipitation event within-year during three consecutive years and tracked changes in total aboveground and forage productivity. We found that arid and semi-arid rangelands were more severely impaired in their forage provision by drought than mesic rangelands, i. e. that sensitivity to drought declined as aridity decreased. Forage productivity decreased on average by ca. 50%, in arid and semi-arid rangelands, whereas mesic sites did not exhibit significant changes between drought and control treatments. The negative impact in forage productivity of arid and semi-arid rangelands was mainly driven by the productivity reduction of few key plant species at each site. In seven of the nine rangelands, we found detrimental effects of drought on forage productivity during the first experimental-drought year, and in five of them the impact was further accentuated until the end of the experiment, which indicates how serious can these events be. Synthesis and applications: Our main findings indicate that the drought-induced impacts on forage provision are higher as aridity increases. This pattern highlights the urgent need to implement strategies to mitigate the detrimental consequences of drought, particularly in arid and semiarid rangelands, where forage provision is strongly associated with human well-being. Management approaches focused on key forage species, such as reducing the grazing pressure during drought periods according to these species’ productivity dynamics, can attenuate impacts on vulnerable ecosystems, preserving the rangelands’ integrity while maintaining high long-term productivity levels.EEA La RiojaFil: Bondaruk, Viviana F. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; ArgentinaFil: Oñatibia, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; ArgentinaFil: Fernández, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; ArgentinaFil: Agüero, Walter Damian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; ArgentinaFil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; ArgentinaFil: Brusquetti, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Brusquetti, Martín. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Kröpfl, Alicia. Universidad Nacional de Río Negro; ArgentinaFil: Kröpfl, Alicia. Universidad Nacional del Comahue. Centro Universitario Regional Zona Atlántica (CURZA); ArgentinaFil: Loydi, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Loydi, Alejandro. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Pascual, Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Pascual, Jesús. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Peter, Guadalupe. Universidad Nacional de Río Negro; ArgentinaFil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Peter, Guadalupe. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; ArgentinaFil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; ArgentinaWileyinfo:eu-repo/date/embargoEnd/2023-07-012022-07-01T16:37:31Z2022-07-01T16:37:31Z2022-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/12218https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.142431365-26640021-8901https://doi.org/10.1111/1365-2664.14243Journal of Applied Ecology (First published: 28 June 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:49:26Zoai:localhost:20.500.12123/12218instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:49:26.81INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
| dc.title.none.fl_str_mv |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| title |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| spellingShingle |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands Bondaruk, Viviana F. Tierras de Pastos Pastizales Sequía Forrajes Zona Arida Zona Semiárida Rangelands Pastures Drought Forage Arid Zones Semiarid Zones |
| title_short |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| title_full |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| title_fullStr |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| title_full_unstemmed |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| title_sort |
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands |
| dc.creator.none.fl_str_mv |
Bondaruk, Viviana F. Oñatibia, Gastón Rafael Fernández, Roberto J. Agüero, Walter Damian Blanco, Lisandro Javier Bruschetti, Martín Kröpfl, Alicia Loydi, Alejandro Pascual, Jesús Peri, Pablo Luis Peter, Guadalupe Quiroga, Raul Emiliano Yahdjian, Laura |
| author |
Bondaruk, Viviana F. |
| author_facet |
Bondaruk, Viviana F. Oñatibia, Gastón Rafael Fernández, Roberto J. Agüero, Walter Damian Blanco, Lisandro Javier Bruschetti, Martín Kröpfl, Alicia Loydi, Alejandro Pascual, Jesús Peri, Pablo Luis Peter, Guadalupe Quiroga, Raul Emiliano Yahdjian, Laura |
| author_role |
author |
| author2 |
Oñatibia, Gastón Rafael Fernández, Roberto J. Agüero, Walter Damian Blanco, Lisandro Javier Bruschetti, Martín Kröpfl, Alicia Loydi, Alejandro Pascual, Jesús Peri, Pablo Luis Peter, Guadalupe Quiroga, Raul Emiliano Yahdjian, Laura |
| author2_role |
author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Tierras de Pastos Pastizales Sequía Forrajes Zona Arida Zona Semiárida Rangelands Pastures Drought Forage Arid Zones Semiarid Zones |
| topic |
Tierras de Pastos Pastizales Sequía Forrajes Zona Arida Zona Semiárida Rangelands Pastures Drought Forage Arid Zones Semiarid Zones |
| dc.description.none.fl_txt_mv |
Droughts are projected to increase in magnitude, frequency and duration in the near future. In rangelands, the provision of valuable ecosystem services such as forage supply for livestock productivity is intimately linked to rainfall patterns, which makes it particularly vulnerable to droughts. Nonetheless, rangelands can differ in their sensitivity to droughts as shown by strong differences in the impacts of inter-annual precipitation changes on vegetation productivity in different sites. The aim of this study was to assess the sensitivity to droughts of nine rangelands located across a broad aridity gradient in Argentina, South America. We experimentally imposed comparable droughts under field conditions by reducing a fixed proportion of each incoming precipitation event within-year during three consecutive years and tracked changes in total aboveground and forage productivity. We found that arid and semi-arid rangelands were more severely impaired in their forage provision by drought than mesic rangelands, i. e. that sensitivity to drought declined as aridity decreased. Forage productivity decreased on average by ca. 50%, in arid and semi-arid rangelands, whereas mesic sites did not exhibit significant changes between drought and control treatments. The negative impact in forage productivity of arid and semi-arid rangelands was mainly driven by the productivity reduction of few key plant species at each site. In seven of the nine rangelands, we found detrimental effects of drought on forage productivity during the first experimental-drought year, and in five of them the impact was further accentuated until the end of the experiment, which indicates how serious can these events be. Synthesis and applications: Our main findings indicate that the drought-induced impacts on forage provision are higher as aridity increases. This pattern highlights the urgent need to implement strategies to mitigate the detrimental consequences of drought, particularly in arid and semiarid rangelands, where forage provision is strongly associated with human well-being. Management approaches focused on key forage species, such as reducing the grazing pressure during drought periods according to these species’ productivity dynamics, can attenuate impacts on vulnerable ecosystems, preserving the rangelands’ integrity while maintaining high long-term productivity levels. EEA La Rioja Fil: Bondaruk, Viviana F. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Bondaruk, Viviana F. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina Fil: Oñatibia, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Oñatibia, Gastón R. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina Fil: Fernández, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Fernández, Roberto J. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina Fil: Agüero, Walter Damian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina Fil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina Fil: Brusquetti, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Brusquetti, Martín. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Kröpfl, Alicia. Universidad Nacional de Río Negro; Argentina Fil: Kröpfl, Alicia. Universidad Nacional del Comahue. Centro Universitario Regional Zona Atlántica (CURZA); Argentina Fil: Loydi, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Loydi, Alejandro. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Pascual, Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Pascual, Jesús. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Peter, Guadalupe. Universidad Nacional de Río Negro; Argentina Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Peter, Guadalupe. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Yahdjian, Laura. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología; Argentina |
| description |
Droughts are projected to increase in magnitude, frequency and duration in the near future. In rangelands, the provision of valuable ecosystem services such as forage supply for livestock productivity is intimately linked to rainfall patterns, which makes it particularly vulnerable to droughts. Nonetheless, rangelands can differ in their sensitivity to droughts as shown by strong differences in the impacts of inter-annual precipitation changes on vegetation productivity in different sites. The aim of this study was to assess the sensitivity to droughts of nine rangelands located across a broad aridity gradient in Argentina, South America. We experimentally imposed comparable droughts under field conditions by reducing a fixed proportion of each incoming precipitation event within-year during three consecutive years and tracked changes in total aboveground and forage productivity. We found that arid and semi-arid rangelands were more severely impaired in their forage provision by drought than mesic rangelands, i. e. that sensitivity to drought declined as aridity decreased. Forage productivity decreased on average by ca. 50%, in arid and semi-arid rangelands, whereas mesic sites did not exhibit significant changes between drought and control treatments. The negative impact in forage productivity of arid and semi-arid rangelands was mainly driven by the productivity reduction of few key plant species at each site. In seven of the nine rangelands, we found detrimental effects of drought on forage productivity during the first experimental-drought year, and in five of them the impact was further accentuated until the end of the experiment, which indicates how serious can these events be. Synthesis and applications: Our main findings indicate that the drought-induced impacts on forage provision are higher as aridity increases. This pattern highlights the urgent need to implement strategies to mitigate the detrimental consequences of drought, particularly in arid and semiarid rangelands, where forage provision is strongly associated with human well-being. Management approaches focused on key forage species, such as reducing the grazing pressure during drought periods according to these species’ productivity dynamics, can attenuate impacts on vulnerable ecosystems, preserving the rangelands’ integrity while maintaining high long-term productivity levels. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-07-01T16:37:31Z 2022-07-01T16:37:31Z 2022-06 info:eu-repo/date/embargoEnd/2023-07-01 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/12218 https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.14243 1365-2664 0021-8901 https://doi.org/10.1111/1365-2664.14243 |
| url |
http://hdl.handle.net/20.500.12123/12218 https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.14243 https://doi.org/10.1111/1365-2664.14243 |
| identifier_str_mv |
1365-2664 0021-8901 |
| 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.publisher.none.fl_str_mv |
Wiley |
| publisher.none.fl_str_mv |
Wiley |
| dc.source.none.fl_str_mv |
Journal of Applied Ecology (First published: 28 June 2022) 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 |
| _version_ |
1842341397914451968 |
| score |
12.623145 |