The main Biomes of the World
Defining what constitutes a forest is not easy. Forest types differ widely, determined by factors including
latitude, temperature, rainfall patterns, soil composition and human activity.
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.