Por favor, use este identificador para citar o enlazar este ítem: http://biblioteca.cehum.org/handle/CEHUM2018/1304
Título : Recent rates of carbon and nitrogen accumulation in peatlands of Isla Grande de Chiloé-Chile
Autor : León, Carolina
Oliván Martínez, Gisela
Palabras clave : Chile
Región X
Indicadores Ambientales
Recursos Naturales
Fecha de publicación : 2014
Editorial : Revista Chilena de Historia Natural
Resumen : 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.
URI : http://biblioteca.cehum.org/handle/CEHUM2018/1304
ISSN : 0716-078X
Aparece en las colecciones: Ciencias Naturales y Aplicadas