Etude comparée des températures en forêt et sur pâturages dans la région d'Alta Floresta, Brésil
Résumé
The transformation of the forest into pastures in the Brazilian Amazon leads to significatives climatic consequences at a local scale. This paper proposes to compare the temperatures observed between 2002 and 2006 using local measurements in the area of Alta Floresta (Mato Grosso, Brazil) between a cleared sector and a forested one located in a reserve. The cleared sector always appeared hotter and drier (from 5 to 10%) than the forested area. This variation was especially marked during the day when it reached on average about 2°C but also seemed to increase during the night with the arrival of the dry season (+0,5°C).