Descripción del proyecto
Estudio del papel procedente de lianas en los bosques tropicales
Los bosques tropicales son componentes vitales para todo el ecosistema terrestre. Sin embargo, aún se sabe poco sobre su papel en el ciclo global del carbono. Una de las razones principales de esta incertidumbre es la falta de inclusión de las lianas, plantas trepadoras cada vez más abundantes en los bosques tropicales. Las lianas podrían ser un mecanismo importante en la adaptación de los bosques tropicales al cambio climático. Sin embargo, la ausencia de lianas en los actuales modelos de ecosistemas terrestres dificulta nuestra capacidad para comprender su verdadera influencia a este respecto. A partir de estas premisas, el equipo del proyecto TREECLIMBERS, financiado con fondos europeos, tiene como objetivo desarrollar el primer modelo de vegetación que incorpore lianas, permitiendo un estudio exhaustivo de su contribución a la dinámica del carbono, la estructura del dosel arbóreo, los procesos demográficos y la resistencia de los bosques frente a la sequía.
Objetivo
Tropical forests are essential components of the earth system. Yet, much uncertainty exists about the exact role of this biome in the global carbon cycle. Our limited understanding of tropical forest functioning is reflected in uncertain global vegetation model projections. A large source of uncertainty in these models is their representation of ecosystem demographic processes. Interestingly, fieldwork has revealed lianas as important components of tropical forests, which are apparently increasing in abundance. Liana proliferation might be a key adaptation mechanism of tropical forests to climate change, which has potentially large impacts on the long term tropical forest biome carbon balance. Nevertheless, no single terrestrial ecosystem model currently includes lianas. TREECLIMBERS will generate important insights into the mechanisms by which lianas influence the carbon balance of tropical forests, by building the first vegetation model that includes lianas. We will make the first integrative study of (1) the contribution of lianas to instantaneous carbon and water fluxes, (2) liana contribution and influence on canopy structure, (3) their role for long term demographic processes, and (4) of their role in forest responses to drought events. TREECLIMBERS will develop the first liana plant functional type (PFT) by combining a unique global meta-analysis of existing data with innovative terrestrial LiDAR 3D measurements of the canopy to study the contribution of lianas to the canopy structure. New and available data will be integrated in the Ecosystem Demography (ED) model, a forerunner of the next generation of vegetation models. By using model-data fusion we will, for the first time, integrate the large amount of available and emerging liana data, leading to an integrated insight into the role of lianas in tropical forest functioning. This project aims to show that shifts in floristic composition due to global change may have important impacts in tropical forests.
Ámbito científico
- social sciencessociologydemographymortality
- natural sciencesearth and related environmental scienceshydrology
- agricultural sciencesagriculture, forestry, and fisheriesagriculturehorticulturearboriculture
- natural sciencesbiological sciencesecologyecosystems
- natural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes
Programa(s)
Régimen de financiación
ERC-STG - Starting GrantInstitución de acogida
9000 Gent
Bélgica