Table 5 Spherical variogram model parameters and trend function coefficients with their respective p-values for stem density (N), basal area (BA), and quadratic mean diameter (QMD) in universal kriging models
Responsevariables | Auxiliaryvariables | βn | p-value | Nugget | Sill | Range |
|---|---|---|---|---|---|---|
FMU 1 | ||||||
Log(N) | Intercept | 5.65 | 0.50 | 0.15 | 0.07 | 141.15 |
h50 | − 0.05 | 0.00 | ||||
PFRA2 | 0.02 | 0.00 | ||||
Log(BA) | Intercept | 2.58 | 0.50 | 0.04 | 0.014 | 7297.63 |
h20 | 0.03 | 0.00 | ||||
PFRA2 | 0.01 | 0.00 | ||||
QMD | Intercept | 13.04 | 0.50 | 40.92 | 2.07 | 1299.37 |
h40 | 1.23 | 0.00 | ||||
FMU 2 | ||||||
Log(N) | Intercept | 5.55 | 0.50 | 0.06 | 0.10 | 1540.77 |
hmode | − 0.04 | 0.00 | ||||
PARA2 | 0.02 | 0.00 | ||||
BA | Intercept | 15.30 | 0.50 | 40.33 | 13.18 | 978.43 |
hkurto | 0.85 | 0.00 | ||||
h40 | 1.36 | 0.00 | ||||
QMD | Intercept | 8.50 | 0.50 | 15.80 | 49.57 | 4575.68 |
h40 | 1.70 | 0.00 | ||||
FMU 3 | ||||||
Log(N) | Intercept | 4.15 | 0.50 | 0.00 | 0.13 | 223.59 |
h70 | − 0.04 | 0.00 | ||||
PFRA2 | 0.03 | 0.00 | ||||
Log(BA) | Intercept | 1.67 | 0.50 | 0.04 | 0.004 | 3048.15 |
h20 | 0.03 | 0.00 | ||||
PFRA2 | 0.02 | 0.00 | ||||
QMD | Intercept | 11.06 | 0.50 | 33.07 | 3.17 | 2645.53 |
h70 | 1.12 | 0.00 | ||||
FMU 4 | ||||||
N | Intercept | 259.46 | 0.50 | 10495.17 | 4200.22 | 2101.59 |
h95 | − 16.11 | 0.014 | ||||
PARAhmean | 11.30 | 0.001 | ||||
BA | Intercept | − 17.80 | 0.32 | 36.54 | 76.80 | 11556.32 |
h05 | 4.24 | 0.001 | ||||
PFRAhmean | 1.01 | 0.000 | ||||
QMD | Intercept | 18.52 | 0.50 | 32.06 | 26.50 | 2352.61 |
h70 | 1.67 | 0.00 | ||||