Analysis of Soil-Vegetation Interrelationships in a South-Southern Secondary Forest of Nigeria

Table 4

Rotated components of soil properties^a.

	Principal components
Soil properties	1	2	3	4	5
Exch. Na	.900	.205	.282	−.012	.079
Exch. Mg	.852	.103	−.242	.038	.028
Organic matter	.035	.903	.295	.000	.128
Total nitrogen	.292	.798	−.082	−.101	−.241
pH	−.028	−.639	.131	−.418	.178
CEC	.086	−.082	−.843	.124	.015
Base saturation	.212	.062	.811	.204	−.269
Av. P	.151	.207	−.516	−.507	.419
Exch. Ca	.149	.048	.064	.896	−.087
Silt content	.456	−.073	.113	−.622	−.203
Exch. K	.424	.421	.318	.483	.166
Sand content	−.207	.065	.021	.187	−.873
Clay content	−.171	−.139	−.283	.237	.823
Eigenvalues	2.18	2.18	2.08	2.01	1.88
% Variance	16.78	16.73	16.01	15.50	14.44
Cumulative explanation	16.78	33.51	49.52	65.02	79.46

^aVariables underlined with eigenvectors (coefficients) ≥ ±0.70 are considered significant.