Abstract

GODINHO-FERREIRA, Paulo; AZEVEDO, Anamaria  and  REGO, Francisco. Map of Forest Types of the Portuguese Mainland. Silva Lus. [online]. 2005, vol.13, n.1, pp.1-34. ISSN 0870-6352.

In the last revision of the National Forest Inventory (DGF, 2001) variables were included describing the vertical structure and the composition of forests on the Portuguese mainland, in order to characterize their biodiversity. The forest vertical structure was assessed by the cover percentage of seven height classes and the composition of the different layers described using plant species, or groups of plant species, easily identifiable on the field. Therefore, it became possible, through cluster analysis, in particular K-means statistics, to identify ten main groups, or forest types, of Portuguese mainland, and to build a map with their geographical distribution.

Keywords : biodiversity; National Forest Inventory; composition; vertical structure; forest types.

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