Effect of Climate Variables on Monthly Growth in Modeling Biological Yield of Araucaria angustifolia and Pinus taeda in the Juvenile Phase

Table 2

Principal components analysis of Pinhais meteorological data for Araucaria angustifolia, for the fourth measurement year (July 2010 to August 2009).

Component number	Eigenvalue	% Variance	Cumulative %	Climate var.	Principal component 1	Principal component 2
1	5.618	70.223	70.223	Photo	0.4135	0.0703
2	1.531	19.139	89.362	Pp (mm)	0.2695	0.4697
3	0.463	5.794	95.156	Pressure	−0.3802	−0.0751
4	0.295	3.691	98.846	Solar rad.	0.3321	−0.3955
5	0.063	0.791	99.638	𝑇max	0.4040	−0.1555
6	0.026	0.324	99.961	𝑇avg	0.4086	−0.0847
7	0.003	0.036	99.998	𝑇min	0.4101	0.0039
8	1.67𝐸−04	0.002	100	UR	0.0563	0.7623

The bold item means first the number of principal components that were selected by the analysis and after it represents the climatic variables that were selected by composing the model.