Edge effects on tree architecture exacerbate biomass loss of fragmented Amazonian forests
Nunes, Matheus Henrique (University of Helsinki. Department of Geosciences and Geography)
Caritá Vaz, Marcel (Institute for Environmental Science and Sustainabilty, Wilkes University)
Campana Camargo, José Luís (National Institute for Amazonian Research)
Laurance, William F. (James Cook University. College of Science and Engineering)
Andrade, Ana (National Institute for Amazonian Research)
Vicentini, Alberto (National Institute for Amazonian Research)
Laurance, Susan (James Cook University. College of Science and Engineering)
Raumonen, Pasi (Tampere University)
Jackson, Toby (University of Cambridge)
Zuquim, Gabriela (University of Turku. Department of Biology)
Wu, Jin (The University of Hong Kong)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Chave, Jerome (Université Paul Sabatier)
Maeda, Eduardo (University of Helsinki. Department of Geosciences and Geography)

Data:	2023
Resum:	Habitat fragmentation could potentially affect tree architecture and allometry. Here, we use ground surveys of terrestrial LiDAR in Central Amazonia to explore the influence of forest edge effects on tree architecture and allometry, as well as forest biomass, 40 years after fragmentation. We find that young trees colonising the forest fragments have thicker branches and architectural traits that optimise for light capture, which result in 50% more woody volume than their counterparts of similar stem size and height in the forest interior. However, we observe a disproportionately lower height in some large trees, leading to a 30% decline in their woody volume. Despite the substantial wood production of colonising trees, the lower height of some large trees has resulted in a net loss of 6. 0 Mg ha−1 of aboveground biomass - representing 2. 3% of the aboveground biomass of edge forests. Our findings indicate a strong influence of edge effects on tree architecture and allometry, and uncover an overlooked factor that likely exacerbates carbon losses in fragmented forests.
Ajuts:	Agencia Estatal de Investigación TED2021-132627B-I00
Nota:	Altres ajuts: the Fundación Ramón Areces grant CIVP20A6621.
Drets:	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.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Nature communications, Vol. 14 (December 2023) , art. 8129, ISSN 2041-1723

DOI: 10.1038/s41467-023-44004-5
PMID: 38097604

13 p, 1.9 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Articles de recerca
Articles > Articles publicats