Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile

BACKGROUND: Peatlands play a key role in the global carbon cycle; these contain one third of the world's soil organic carbon, equivalent to more than half the amount of carbon in the atmosphere. Nevertheless, these ecosystems have been scarcely studied in southern South America. The main object...

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Autores principales:	León,Carolina A, Olivan,Gisela
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2014
Materias:	Carbon accumulation Nitrogen accumulation Northern Patagonia Oligotrophic peatlands Pb-210
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100023
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spelling	oai:scielo:S0716-078X20140001000232015-07-23Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-ChileLeón,Carolina AOlivan,Gisela Carbon accumulation Nitrogen accumulation Northern Patagonia Oligotrophic peatlands Pb-210 BACKGROUND: Peatlands play a key role in the global carbon cycle; these contain one third of the world's soil organic carbon, equivalent to more than half the amount of carbon in the atmosphere. Nevertheless, these ecosystems have been scarcely studied in southern South America. The main objective of this paper is to evaluate the recent accumulation rates of carbon (C) and nitrogen (N) in two kinds of oligotrofic peatlands in Isla Grande de Chiloé (Chile). RESULTS: Using peat C and N content, dry bulk density, and Pb-210 dating, we determined the rates of N and C accumulation in profiles from five peatlands in the northern Chilean Patagonia. The recent rate of C accumulation (RERCA) ranges from 8.5 to 87.06 g C m-2 year-1, and the recent rate of N accumulation (RERNA) ranges from 0.15 to 2.37 g N m-2 year-1. The difference in RERCA and RERNA between glacial peatlands and anthropogenic peatlands was significant. One of the remarkable results is that accumulation of N and C are directly related. CONCLUSIONS: This study contributes for a better understanding of the Patagonian peatlands of Chile. In addition, this research contributes by setting a basis for conducting further studies and for assessing the impacts of climate change on peatlands.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.87 20142014-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100023en10.1186/S40693-014-0026-Y
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Carbon accumulation Nitrogen accumulation Northern Patagonia Oligotrophic peatlands Pb-210
spellingShingle	Carbon accumulation Nitrogen accumulation Northern Patagonia Oligotrophic peatlands Pb-210 León,Carolina A Olivan,Gisela Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
description	BACKGROUND: Peatlands play a key role in the global carbon cycle; these contain one third of the world's soil organic carbon, equivalent to more than half the amount of carbon in the atmosphere. Nevertheless, these ecosystems have been scarcely studied in southern South America. The main objective of this paper is to evaluate the recent accumulation rates of carbon (C) and nitrogen (N) in two kinds of oligotrofic peatlands in Isla Grande de Chiloé (Chile). RESULTS: Using peat C and N content, dry bulk density, and Pb-210 dating, we determined the rates of N and C accumulation in profiles from five peatlands in the northern Chilean Patagonia. The recent rate of C accumulation (RERCA) ranges from 8.5 to 87.06 g C m-2 year-1, and the recent rate of N accumulation (RERNA) ranges from 0.15 to 2.37 g N m-2 year-1. The difference in RERCA and RERNA between glacial peatlands and anthropogenic peatlands was significant. One of the remarkable results is that accumulation of N and C are directly related. CONCLUSIONS: This study contributes for a better understanding of the Patagonian peatlands of Chile. In addition, this research contributes by setting a basis for conducting further studies and for assessing the impacts of climate change on peatlands.
author	León,Carolina A Olivan,Gisela
author_facet	León,Carolina A Olivan,Gisela
author_sort	León,Carolina A
title	Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
title_short	Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
title_full	Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
title_fullStr	Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
title_full_unstemmed	Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
title_sort	recent rates of carbon and nitrogen accumulation in peatlands of isla grande de chiloé-chile
publisher	Sociedad de Biología de Chile
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100023
work_keys_str_mv	AT leoncarolinaa recentratesofcarbonandnitrogenaccumulationinpeatlandsofislagrandedechiloechile AT olivangisela recentratesofcarbonandnitrogenaccumulationinpeatlandsofislagrandedechiloechile
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Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile

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