English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/164791
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Carbon fluxes from a temperate rainforest site in southern South America reveal a very sensitive sink

AuthorsPérez-Quezada, Jorge F.; Celis-Díez, Juan Luis; Brito, Carla E.; Gaxiola, Aurora; Núñez-Avila, Mariela; Pugnaire, Francisco I. ; Armesto, Juan J.
KeywordsAMERIFLUX
Chile
Chiloé Island
Eddy flux
Evergreen
FLUXNET
North Patagonian rainforest
Southern Hemisphere
Issue Date17-Apr-2018
PublisherWiley-Blackwell
CitationEcosphere 9(4): e02193 (2018)
AbstractEcosystems where carbon fluxes are being monitored on a global scale are strongly biased toward temperate Northern Hemisphere latitudes. However, forest and moorland ecosystems in the Southern Hemisphere may contribute significantly to the global and regional C balance and are affected by different climate systems. Here, we present the first data from an old‐growth forest representative of temperate, broad‐leaved rainforests from southern South America. Carbon fluxes monitored over two years using the eddy covariance technique showed that this rainforest acts as an annual sink (−238 ± 31 g C/m2). However, there were significant pulses of carbon emission associated with dry episodes during the summer months (i.e., peak of the growing season) and periods of significant carbon fixation during the cold austral winter, indicating that the carbon balance in this forest is very sensitive to climate fluctuations. The carbon fixation surges in winter seem to be related to the mild temperatures recorded during this period of the year under the prevailing oceanic climate. Winter carbon gain was more relevant in determining the annual carbon balance than summer pulse emissions. Regarding the annual carbon balance, this southern forest resembles the patterns observed in montane tropical forests more than the behavior of narrow‐leaved evergreen temperate forests from the Northern Hemisphere. These patterns make this southern forest type relevant to understanding the mechanisms and thresholds that control ecosystem shifts from carbon sinks and sources and will provide key data to improve global dynamic vegetation models.
Publisher version (URL)https://doi.org/10.1002/ecs2.2193
URIhttp://hdl.handle.net/10261/164791
DOI10.1002/ecs2.2193
E-ISSN2150-8925
Appears in Collections:(EEZA) Artículos
Files in This Item:
File Description SizeFormat 
Perez-Quezada_et_al-2018-Ecosphere (1).pdfArtículo4,44 MBAdobe PDFThumbnail
View/Open
ecs22193-sup-0001-appendixs1.pdfApéndice I230,65 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.