Drought stress and tree size determine stem CO2 efflux in a tropical forest
Rowland, Lucy (University of Exeter. College of Life and Environmental Sciences)
da Costa, Antonio C. L. (Universidade Federal do Pará. Instituto de Geociências)
Oliveira, Alex A. R. (Museu Paraense Emílio Goeldi (Brasil))
Oliveira, Rafael S. (Universidade Estadual de Campinas. Instituto de Biologia)
Bittencourt, Paulo L. (Universidade Estadual de Campinas. Instituto de Biologia)
Costa, Patricia B. (Universidade Estadual de Campinas. Instituto de Biologia)
Giles, Andre L. (Universidade Estadual de Campinas. Instituto de Biologia)
Sosa, Azul I. (Universidade Estadual de Campinas. Instituto de Biologia)
Coughlin, Ingrid (Universidade de São Paulo. Departamento de Biologia)
Godlee, John L. (University of Edinburgh. School of GeoSciences)
Vasconcelos, Steel S. (Embrapa Amazonia Oriental (Brasil))
Junior, João A. S. (Universidade Federal do Pará. Instituto de Geociências)
Ferreira, Leandro V. (Museu Paraense Emílio Goeldi (Brasil))
Mencuccini, Maurizio (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Meir, Patrick (Australian National University. Research School of Biology)
Institució Catalana de Recerca i Estudis Avançats

Date:	2018
Abstract:	- CO₂ efflux from stems (CO₂_stem) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. - We present a study of tropical forest CO₂_stem from 215 trees across wet and dry seasons, at the world's longest running tropical forest drought experiment site. - We show a 27% increase in wet season CO₂_stem in the droughted forest relative to a control forest. This was driven by increasing CO₂_stem in trees 10-40 cm diameter. Furthermore, we show that drought increases the proportion of maintenance to growth respiration in trees.
Note:	ALTRES AJUTS: NE/N014022/1, NE/J011002/1
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Drought ; Growth respiration ; Maintenance respiration ; Stem CO2 efflux ; Tropical rainforests ; Woody tissue respiration
Published in:	The new phytologist, Vol. 218 Núm. 4 (june 2018) , p. 1393-1405, ISSN 1469-8137

DOI: 10.1111/nph.15024
PMID: 29397028

13 p, 1.1 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Research articles
Articles > Published articles