Among the most compelling and least well-understood tree species growing in the temperate forests of southern South America is Fitzroya cupressoides, a high biomass species and the second longest-lived tree species in the world. This thesis quantified the main components of the carbon cycle in Fitzroya forests (i.e. net primary productivity (NPP) and soil respiration) and evaluated the environmental variables that are most related to them. The study was focused on medium-...