Modeling Dominant Height Growth in Planted Pinus pinea Stands in Northwest of Tunisia
Table 3
Parameter estimates and goodness-of-fit statistics.
Model
Par.
Estim.
S.E.
RMSE
Bias
AICd
M1
b1
−5.095
11.107
−0.46
0.6466
b2
6021.461
2533.2
2.38
0.0178
b3
1.611
0.045
35.92
<0.0001
0.4883
0.072
0.9826
8.17
26.1
0.842
0.024
34.90
<0.0001
0.796
0.024
33.21
<0.0001
M2
b1
47.812
10.281
4.65
<0.0001
b2
−8.719
3.563
−2.45
0.0147
b3
1.609
0.045
35.83
<0.0001
0.4881
0.072
0.9826
7.62
25.9
0.842
0.024
34.90
<0.0001
0.796
0.024
33.24
<0.0001
M3
b1
0.049
0.003
17.10
<0.0001
b2
−0.052
0.457
−0.11
0.9093
b3
4.999
1.385
3.61
0.0003
0.4864
0.072
0.9846
3.42
23.7
0.837
0.025
34.16
<0.0001
0.791
0.025
31.95
<0.0001
M4
b2
0.046
0.003
16.06
<0.0001
b3
4.957
0.144
34.38
<0.0001
0.4974
0.075
0.9821
23.26
23.6
0.848
0.024
35.77
<0.0001
0.796
0.024
33.08
<0.0001
M5
b2
0.048
0.003
16.37
<0.0001
b3
1.393
0.063
22.16
<0.0001
0.4932
0.071
0.9823
19.49
23.8
0.848
0.024
35.87
<0.0001
0.804
0.023
34.83
<0.0001
M6
b2
35.574
0.728
48.78
<0.0001
b3
0.558
0.034
16.30
<0.0001
0.4832
0.067
0.9830
0
37.6
0.829
0.025
32.83
<0.0001
0.794
0.024
32.68
<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.