Appendix C. Principal components analysis of soil chemical and physical properties, for those sites with dynamic information.
1. PCA eigenvectors for each soil variable. PCA factor 1 accounts for 52% of the eigenvalue variance, factor 2 for 16%, factor 3 for 11%.
|
PCA1 |
PCA2 |
PCA3 |
|
|
drainage |
-0.25 |
0.19 |
0.22 |
|
pH |
0.32 |
0.30 |
-0.23 |
|
ln(Ca) |
0.31 |
0.31 |
-0.32 |
|
ln(K) |
0.36 |
-0.11 |
0.17 |
|
ln(Mg) |
0.38 |
0.17 |
-0.05 |
|
ln(Al) |
-0.16 |
-0.59 |
0.12 |
|
P |
-0.09 |
0.39 |
0.35 |
|
%<0.063 |
0.37 |
-0.16 |
0.14 |
2. PCA factor scores by site.
|
PCA1 |
PCA2 |
PCA3 |
|
|
ALP-11 |
-1.96 |
-0.91 |
-1.43 |
|
ALP-12 |
-3.38 |
0.29 |
-0.58 |
|
ALP-21 |
-5.34 |
2.79 |
0.60 |
|
ALP-22 |
-1.16 |
0.46 |
-0.95 |
|
SUC-01 |
-0.44 |
-1.31 |
-0.65 |
|
SUC-02 |
-0.86 |
-0.80 |
-0.17 |
|
YAN-01 |
1.77 |
-0.77 |
-2.03 |
|
MSH-01 |
-2.54 |
0.13 |
-0.21 |
|
TAM-01 |
1.00 |
-1.06 |
0.13 |
|
TAM-02 |
0.58 |
-1.95 |
1.43 |
|
TAM-04 |
0.02 |
-1.98 |
1.66 |
|
TAM-05 |
-2.03 |
1.25 |
2.06 |
|
TAM-06 |
2.15 |
1.53 |
-1.13 |
|
TAM-07 |
-0.56 |
-1.99 |
0.70 |
|
CUZ-01 |
1.49 |
0.46 |
-1.24 |
|
CUZ-02 |
3.03 |
0.84 |
-0.12 |
|
CUZ-03 |
3.90 |
1.90 |
0.52 |
|
CUZ-04 |
4.34 |
1.11 |
1.41 |