The climate of Patagonia general patterns and controls on biotic processes

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In this article we review the main characteristics of the Patagonian climate, the spatial and temporal patterns of the most important climatic variables, and the influence of climate on ecosystem processes. The winter distribution of precipitation determines an asynchrony between the wet and the gro...

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Autores principales: Paruelo, José M., Beltrán, Adriana, Jobbágy, Esteban, Sala, Osvaldo E., Golluscio, Rodolfo A.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Asociación Argentina de Ecología 1998
Acceso en línea:https://hdl.handle.net/20.500.12110/ecologiaaustral_v008_n02_p085
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling ecologiaaustral:ecologiaaustral_v008_n02_p0852023-09-19T12:38:56Z The climate of Patagonia general patterns and controls on biotic processes Ecología Austral (en línea) 1998;02(008):085-101 Paruelo, José M. Beltrán, Adriana Jobbágy, Esteban Sala, Osvaldo E. Golluscio, Rodolfo A. In this article we review the main characteristics of the Patagonian climate, the spatial and temporal patterns of the most important climatic variables, and the influence of climate on ecosystem processes. The winter distribution of precipitation determines an asynchrony between the wet and the growing season in Patagonia. The amount of water that can be transferred from the wet season to the growing season depends mainly on the physical characteristics of the soil. In the semiarid steppe of Chubut, drainage accounted for 10% of annual precipitation. Winter distribution of precipitation determines also an asynchronic dynamics of evaporation and transpiration fluxes. The ENSO phenomenon have a significant impact on regional precipitation. In central-west Patagonia, spring precipitation (September to November) was lower than normal during La Niña events and greater than normal during El Niño events. From December to February the opposite pattern can be observed: higher than normal precipitation during La Niña events and lower than normal precipitation during El Niño events. The impact of this phenomenon on the seasonal temperature was not as clear as for precipitation. We did not detect any temporal trends in annual precipitation for the period 1961-1996. The phenology of carbon gains is quite homogeneous in Patagonia. Most of the region showed a peak of production in November, when, simultaneously, water availability and temperature are high. Toward the west, production peaked later (December). Deciduous forests showed the peak in January and February. Asociación Argentina de Ecología 1998-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar https://hdl.handle.net/20.500.12110/ecologiaaustral_v008_n02_p085
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
description In this article we review the main characteristics of the Patagonian climate, the spatial and temporal patterns of the most important climatic variables, and the influence of climate on ecosystem processes. The winter distribution of precipitation determines an asynchrony between the wet and the growing season in Patagonia. The amount of water that can be transferred from the wet season to the growing season depends mainly on the physical characteristics of the soil. In the semiarid steppe of Chubut, drainage accounted for 10% of annual precipitation. Winter distribution of precipitation determines also an asynchronic dynamics of evaporation and transpiration fluxes. The ENSO phenomenon have a significant impact on regional precipitation. In central-west Patagonia, spring precipitation (September to November) was lower than normal during La Niña events and greater than normal during El Niño events. From December to February the opposite pattern can be observed: higher than normal precipitation during La Niña events and lower than normal precipitation during El Niño events. The impact of this phenomenon on the seasonal temperature was not as clear as for precipitation. We did not detect any temporal trends in annual precipitation for the period 1961-1996. The phenology of carbon gains is quite homogeneous in Patagonia. Most of the region showed a peak of production in November, when, simultaneously, water availability and temperature are high. Toward the west, production peaked later (December). Deciduous forests showed the peak in January and February.
format Artículo
Artículo
publishedVersion
author Paruelo, José M.
Beltrán, Adriana
Jobbágy, Esteban
Sala, Osvaldo E.
Golluscio, Rodolfo A.
spellingShingle Paruelo, José M.
Beltrán, Adriana
Jobbágy, Esteban
Sala, Osvaldo E.
Golluscio, Rodolfo A.
The climate of Patagonia general patterns and controls on biotic processes
author_facet Paruelo, José M.
Beltrán, Adriana
Jobbágy, Esteban
Sala, Osvaldo E.
Golluscio, Rodolfo A.
author_sort Paruelo, José M.
title The climate of Patagonia general patterns and controls on biotic processes
title_short The climate of Patagonia general patterns and controls on biotic processes
title_full The climate of Patagonia general patterns and controls on biotic processes
title_fullStr The climate of Patagonia general patterns and controls on biotic processes
title_full_unstemmed The climate of Patagonia general patterns and controls on biotic processes
title_sort climate of patagonia general patterns and controls on biotic processes
publisher Asociación Argentina de Ecología
publishDate 1998
url https://hdl.handle.net/20.500.12110/ecologiaaustral_v008_n02_p085
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