Research Article

Modeling Dominant Height Growth in Planted Pinus pinea Stands in Northwest of Tunisia

Table 3

Parameter estimates and goodness-of-fit statistics.

ModelPar.Estim.S.E. RMSEBias AICd

M1b1−5.09511.107−0.460.6466
b26021.4612533.22.380.0178
b31.6110.04535.92<0.00010.48830.0720.98268.1726.1
0.8420.02434.90<0.0001
0.7960.02433.21<0.0001

M2b147.81210.2814.65<0.0001
b2−8.7193.563−2.450.0147
b31.6090.04535.83<0.00010.48810.0720.98267.6225.9
0.8420.02434.90<0.0001
0.7960.02433.24<0.0001

M3b10.0490.00317.10<0.0001
b2−0.0520.457−0.110.9093
b34.9991.3853.610.00030.48640.0720.98463.4223.7
0.8370.02534.16<0.0001
0.7910.02531.95<0.0001

M4b20.0460.00316.06<0.0001
b34.9570.14434.38<0.00010.49740.0750.982123.2623.6
0.8480.02435.77<0.0001
0.7960.02433.08<0.0001

M5b20.0480.00316.37<0.0001
b31.3930.06322.16<0.00010.49320.0710.982319.4923.8
0.8480.02435.87<0.0001
0.8040.02334.83<0.0001

M6b235.5740.72848.78<0.0001
b30.5580.03416.30<0.00010.48320.0670.9830037.6
0.8290.02532.83<0.0001
0.7940.02432.68<0.0001

Par.: parameter; Estim.: estimate; S.E.: standard error; : estimated dominant height (in m) for site quality class 1 at 250 years which corresponds to the longevity of Pinus pinea.