The correlations between environmental factors and
site index were quantfied covering the range of climatic,
topographic and edaphic conditions in the
province of Firenze. The plantations were stratfied
in 31 environmental strata, by the following characters:
(i) litology (as assessed by Canuti et al., 1989);
(ii) land use potential (as assessed by Provincia di
Firenze, 1997); (iii) climate type (as assessed by Bigi
and Rustici, 1984); (iv) site quality (as assessed by
Cappelli and Gabellini, 1994).