Modeling Growth and Yield of Schizolobium amazonicum under Different Spacings
Table 1
Average and standard error (in parentheses) for selected stand variables at different combinations of spacing and age.
Spacing
2
3
4
5
2
3
4
5
2
3
4
5
12.64
17.33
18.64
19.38
9.87
13.13
14.00
14.40
9.72
12.88
13.72
14.11
(1.43)
(1.32)
(1.51)
(1.76)
(1.39)
(0.88)
(0.88)
(0.88)
(1.44)
(0.91)
(0.89)
(0.87)
12.38
17.68
19.53
20.65
9.91
14.13
15.34
15.72
9.75
13.94
15.10
15.44
(1.42)
(1.29)
(1.29)
(1.70)
(1.64)
(0.89)
(0.82)
(0.85)
(1.72)
(0.88)
(0.81)
(0.83)
12.78
18.44
20.16
21.40
10.48
15.09
16.22
17.03
10.35
14.93
16.02
16.82
(1.29)
(1.12)
(1.10)
(1.32)
(1.30)
(0.89)
(0.91)
(0.82)
(1.35)
(0.91)
(0.94)
(0.84)
13.91
19.14
21.14
22.68
10.72
15.84
17.48
18.35
10.43
15.67
17.30
18.11
(6.27)
(1.26)
(1.31)
(1.39)
(1.40)
(1.06)
(1.03)
(0.98)
(1.23)
(1.10)
(1.06)
(1.01)
13.17
20.18
22.42
24.28
10.79
17.22
19.41
20.69
10.60
17.05
19.26
20.47
(3.15)
(1.93)
(1.78)
(1.88)
(1.89)
(1.39)
(1.29)
(1.46)
(1.93)
(1.41)
(1.32)
(1.54)
Spacing
2
3
4
5
2
3
4
5
2
3
4
5
13.39
19.81
21.27
21.03
10.48
15.85
17.13
16.73
1529.8
1488.1
1444.4
1277.8
(2.02)
(1.50)
(1.47)
(1.20)
(1.84)
(1.29)
(1.28)
(0.94)
(99.1)
(120.1)
(160.1)
(200.6)
11.41
20.03
21.61
21.38
9.16
16.99
18.18
17.86
1001.8
993.0
978.8
945.3
(2.35)
(1.96)
(1.62)
(1.05)
(2.31)
(1.73)
(1.40)
(1.23)
(79.74)
(96.95)
(93.98)
(89.76)
12.37
18.76
21.13
21.20
10.23
16.37
18.46
18.69
756.6
751.3
735.5
689.2
(1.38)
(2.49)
(1.12)
(1.09)
(1.65)
(2.48)
(1.25)
(1.05)
(62.47)
(57.96)
(64.86)
(94.65)
12.45
19.42
20.88
21.30
10.31
17.38
18.90
19.31
577.6
572.9
563.7
554.4
(1.37)
(1.28)
(1.27)
(1.29)
(1.48)
(1.41)
(1.23)
(1.32)
(51.16)
(50.56)
(57.44)
(65.43)
11.33
19.42
21.73
21.83
10.09
17.87
20.12
20.31
367.2
355.0
355.0
353.3
(2.24)
(1.72)
(1.81)
(1.36)
(2.19)
(1.71)
(1.59)
(1.37)
(40.70)
(44.24)
(44.24)
(45.36)
Spacing
2
3
4
5
2
3
4
5
2
3
4
5
11.88
20.18
22.29
20.78
21.25
62.09
77.15
71.81
85.43
176.30
204.92
185.74
(2.95)
(2.64)
(3.37)
(3.43)
(8.0)
(13.1)
(17.0)
(15.3)
(20.7)
(28.4)
(36.1)
(32.7)
8.03
15.74
18.21
18.44
13.30
53.44
69.69
70.78
53.13
142.33
171.99
170.13
(2.53)
(2.85)
(2.93)
(2.83)
(6.2)
(14.5)
(16.6)
(16.2)
(17.0)
(32.6)
(34.4)
(31.6)
6.67
13.53
15.31
15.79
11.99
45.65
60.27
64.89
45.20
115.52
142.70
147.25
(1.68)
(1.99)
(2.37)
(2.79)
(4.4)
(11.8)
(12.4)
(14.0)
(11.7)
(26.6)
(25.1)
(27.8)
5.33
11.41
13.66
14.79
11.64
41.80
57.60
66.00
37.39
101.19
128.28
140.63
(1.44)
(2.10)
(2.43)
(2.66)
(11.9)
(10.4)
(13.4)
(14.9)
(13.8)
(21.4)
(26.1)
(28.6)
3.52
8.40
10.63
12.04
7.07
33.51
51.02
61.06
24.02
75.19
104.55
118.18
(1.28)
(1.98)
(2.33)
(2.79)
(4.84)
(11.1)
(15.7)
(18.8)
(9.8)
(21.0)
(27.7)
(31.2)
: maximum diameter, : quadratic diameter, : average diameter at breast height, : dominant height, : average total height, : number of trees, : basal area, : commercial volume and: total volume.
