Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Edge effects on tree architecture exacerbate biomass loss of fragmented Amazonian forests
Altres ajuts: the Fundación Ramón Areces grant CIVP20A6621. ; 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.
Edge effects on tree architecture exacerbate biomass loss of fragmented Amazonian forests
Altres ajuts: the Fundación Ramón Areces grant CIVP20A6621. ; 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.
Edge effects on tree architecture exacerbate biomass loss of fragmented Amazonian forests
Nunes, Matheus Henrique (Autor:in) / Caritá Vaz, Marcel (Autor:in) / Campana Camargo, José LuÃs (Autor:in) / Laurance, William F. (Autor:in) / Andrade, Ana (Autor:in) / Vicentini, Alberto (Autor:in) / Laurance, Susan (Autor:in) / Raumonen, Pasi (Autor:in) / Jackson, Toby (Autor:in) / Zuquim, Gabriela (Autor:in)
01.01.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
720
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