Projeto
AmazonFACE/ME:The AmazonFACE Model- Experiment Integration Project - the role of biodiversity and climate feedbacks
Resumo
This project (jointly with German collaborator scientists funded by DFG) ? initiates the long-term ecosystem modeling activities within the AmazonFACE (Free-Air CO2 Enrichment) experiment that is initiated in central Amazonia aiming to investigate the effects of increased atmospheric CO2 on the ecology and resilience of the forest ? which is also the major objective of this proposal. A set of scientific questions related to carbon metabolism and cycling, water use, nutrient cycling and tropical forest plant diversity are investigated inside three project tasks: (1) an intercomparison of results from 12 dynamic global vegetation models (DGVM) run with LBA input data from the AmazonFACE experimental site under current and +200ppmv [CO2] that will provide the first set of hypothesis to be verified in the field experiment; (2) development of a new DGVM based on functional traits and trade-offs (instead of the standard plant functional types logic) that will provide better ways to tackle the enormous plant diversity found in tropical forests and how they respond to environmental changes; and (3) a simple exercise to investigate potential feedbacks that elevated [CO2] can cause between the Amazonian biosphere and atmosphere using a DGVM dynamically coupled to a general circulation model of the atmosphere. The approach of integrating ecosystem modeling and observational experimentation such as done here is key to efficiently enhance our predictive understanding of climate change?s impact on the Amazon and other tropical ecosystems. *** Parte do Projeto AmazonFACE
Responsáveis
Membros
ALEXANDRO JOSE BALDASSIN
Anja Rammig
CARLOS ALBERTO NOBRE QUESADA
CELSO VON RANDOW
GILVAN SAMPAIO DE OLIVEIRA
KATRIN FLEISCHER
MOARA ALMEIDA CANOVA TEIXEIRA
Richard J. Norby