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โครงการรวบรวมและจัดทําวารสารอิเล็กทรอนิกส์ มหาวิทยาลัยเกษตรศาสตร์

30 Thai J. For. 31 (1) : 26-37 (2012)

Table 1 Growth and annual increment of Pinus kesiya and other broadleaved trees
with stand age.
Pinus kesiya
Age(year) Growth Annual increment
H (m) DBH (cm) H (m/yr) DBH (cm/yr)
14-15 15.72 30.02 1.09 2.08
16-20 17.00 27.30 0.95 1.53
21-25 18.24 25.58 0.80 1.12
26-30 18.67 30.21 0.67 1.08
30-34 21.68 33.58 0.67 1.04
Mean 18.64 28.58 0.82 1.28
Other broadleaved trees
14-15 12.39 22.15 0.86 1.53
16-20 14.24 19.78 0.79 1.11
21-25 13.06 19.13 0.57 0.83
26-30 13.68 22.02 0.49 0.79
30-34 14.73 24.33 0.45 0.75
Mean 13.39 20.16 0.62 0.96

P. kesiya Other broadleaved trees

H(m)

Age (year)

P. kesiya Other broadleaved trees

DBH (cm)

Age (year)

Figure 2 Average height (H) and DBH of Pinus kesiya and other broadleaved trees
plotted against stand age.