Effects of Different Water Seasons on the Residual Characteristics and Ecological Risk of Polycyclic Aromatic Hydrocarbons in Sediments from Changdang Lake, China

Table 3

Eigenvalues for RDA axis and environmental indexes correlations.

Axes	1	2	3	4	Total variance
Eigenvalues	0.6264	0.0498	0.0856	0.0697	1.0000
Explained variation (cumulative)	62.64	67.62	76.18	83.15
Pseudocanonical correlation	0.9696	0.7022	0.0000	0.0000
Explained fitted variation (cumulative)	88.90	95.97