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Table III

Loading factors and eigenvalues for the first two axes resulting from a Principal Component Analysis performed on canopy structural variables measured in the selected A. pinsapo stands.

PC 1 PC 2
Loading factor for variable:
 CV of density along diameter classes 0.81 –0.42
 Number of diameter classes 0.91 0.36
 Percentage of gaps 0.59 –0.69
 Total basal area 0.77 0.48
 Density of live trees > 4m high –0.62 0.54
 Diameter range of live trees > 4m high 0.47 0.85
 Importance values of seedlings 0.59 –0.03

Eigenvalues 3.39 2.03
Explained variance (cumulative %) 48.4 77.4