Editorial
The information contained in this new October newsletter clearly demonstrates the increasingly urgent challenges we face in safeguarding the last remaining tropical forests. Tropical forests remain under pressure, and the effects of climate change are exacerbating the effects of deforestation and unsustainable logging on these increasingly fragile ecosystems. Climate change is increasingly present and spares no forest, as evidenced by the megafires that have destroyed over 13 million ha of Canadian forests. We urgently need to stop postponing the measures we need to take to reduce our emissions, fight deforestation and illegal logging, and initiate large-scale restoration programs.
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Medias
Deforestation, overexploitation, megafires... forests in danger
The world's forests, reservoirs of life and carbon, are in constant decline. How can they be better protected? Plinio Sist, director of the Forests and Societies unit, specialising in forest ecosystems at CIRAD, and Hervé Le Treut, climatologist and former member of the IPCC, explained the importance of preserving forests on the TV5 Monde programme Grand Angle.
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Projects
Understanding the effects of logging in a context of climate change
CIRAD has been analysing data on the functioning of the Amazonian forest ecosystem for over thirty years, in order to understand the effects of forest exploitation and its capacity to regenerate in a context of climate change. It coordinates an international network of sites for monitoring tropical forest dynamics (TmFO), which includes 30 experimental sites, 17 of which are in Amazonia, spread over 12 countries (Bolivia, Brazil, Guyana, French Guiana, Peru, Surinam, CAR, Gabon, CAR, Malaysia and Indonesia).
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Updating sustainable forestry models
Faced with an ever-increasing demand for wood, scientists have come together to set up a system that is unique in the world: an observatory of "managed" tropical forests. The aim is to monitor the evolution of exploited tropical forests and deduce sustainable exploitation models.
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Publications
Effect of agreements on agricultural land for the protection of natural areas on basic psychological needs
Some studies question the effectiveness of incentive-based environmental public policies in inducing changes in farmers' practices because of certain psychological mechanisms. Rooted in the theory of self-determination, the existing literature focuses in particular on the phenomenon of crowding out motivation, while neglecting the central concept of the fundamental psychological needs of human beings: autonomy, competence and social relationships. This is demonstrated by an article co-published by Colas Chervier, from the UPR Forêts et Sociétés.
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A common framework for modelling the regeneration of disturbed tropical forests
Until now, there has been no model of forest regeneration trajectories, considering disturbed forests within a common framework, along a gradient of disturbance intensity, according to different types of disturbance. This model, developed by an international team of researchers including three members of the UPR Forêts et Sociétés and published in the journal Ecological Modelling, makes it possible to understand and compare the way in which vegetation attributes overlap in disturbed forests. The abstract of this publication is reproduced below.
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