Which matters more for wood traits in Pinus halepensis Mill., provenance or climate?

Table 6 Loadings of the first three principal components PC1, PC2, and PC3

Variable	PC1	PC2	PC3
RW	0.43	− 0.06	− 0.10
EW	0.42	− 0.16	− 0.01
Dmean	− 0.41	0.03	− 0.05
LW	0.39	0.10	− 0.19
Dew	− 0.39	− 0.05	− 0.02
IADF E	0.34	− 0.25	0.24
Dmax	− 0.01	− 0.56	0.33
Dlw	− 0.16	− 0.50	0.39
IADF L ⁺	− 0.03	0.44	0.59
IADF L	0.18	0.37	0.53

The principal component analysis was calculated on the matrix of chronologies of tree-ring width and density variables (RW; tree-ring width, EW and LW; earlywood and latewood width, Dmean and Dmax; ring and maximum densities, Dew and Dlw; earlywood and latewood densities) and IADFs’ frequency (IADF types E, L, and L⁺) considering the common period 2004–2012.

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