Quel futur pour les forêts de production en Amazonie? Du bilan Carbone de l’exploitation forestière à la recherche de compromis entre services écosystémiques (bois d’oeuvre, biodiversité et carbone)

Abstract : Half of the world’s tropical forests are designated by national forest services as production forests. While there have been numerous studies on the impact of deforestation on carbon emissions and biodiversity loss in the tropics, the long-term impacts of selective logging are still poorly studied. However, the importance of these production forests is increasing. Not only must they meet the growing tropical timber demand, but their role in carbon storage and the biodiversity conservation is increasingly recognized. The studies developed in this thesis are threefold. First, a carbon balance model of logging is developed, and regional differences in post-logging carbon recovery dynamics are modelled. Secondly, a timber volume recovery model has been developed and calibrated at the Amazonian scale. These results point out the slow recovery of timber volume in the Amazon, and thus the unsustainability of current logging practices. These models (carbon and timber) were developed in a Bayesian framework, with support and data from the Tropical managed Forest Observatory (TmFO: www.tmfo.org), a network of 9 research institutions and more than 200 forest plots where post-logging forest dynamics have been monitored for > 30 years in the Amazon. Finally, a comparative analysis of prospective scenarios was carried out, where potential tradeoffs between ecosystem services (timber, carbon and biodiversity) were explored using multi-criteria optimization analysis.
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Camille Piponiot. Quel futur pour les forêts de production en Amazonie? Du bilan Carbone de l’exploitation forestière à la recherche de compromis entre services écosystémiques (bois d’oeuvre, biodiversité et carbone). Biodiversité et Ecologie. Université de Guyane, 2018. Français. ⟨tel-01996990⟩

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