Understanding the Spatial Heterogeneity of CO₂ and CH₄ Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors

Table 6

Collinearity diagnostics.

Model		Eigenvalue	Condition index	Variance proportions
				(Constant)	T	OM	pH
lg CO2	1	3.979	1.000	0.00	0.00	0.00	0.00
	2	0.015	16.511	0.00	0.01	0.75	0.01
	3	0.006	26.421	0.00	0.58	0.07	0.04
	4	0.000	112.854	0.99	0.41	0.18	0.95
Model		Eigenvalue	Condition index	Variance proportions
				(Constant)	Tur	N-
lg CH4	1	2.842	1.000	0.01	0.01	0.02
	2	0.106	5.168	0.05	0.27	0.91
	3	0.051	7.432	0.94	0.72	0.08