Table. 3.

Tree and stand characteristics of a Korean white pine plantation and oak-dominated natural deciduous forest

Stand type Experimental
site
Plot At first measurement after thinning At last measurement
Average tree DBH
(cm)
Average tree height
(m)
Average
tree volume (m3)
No. of stems
(trees/ha)
Stand basal area
(m2/ha)
Stand volume
(m3/ha)
Average tree
DBH (cm)
Average tree height (m) Average tree volume (m3) No. of stems
(trees/ha)
Stand basal area
(m2/ha)
Stand volume
(m3/ha)
Korean white pine plantation (Pinus koraiensis) Site 1 A 13.2 9.5 0.076 990 13.8 75.0 22.2 15.8 0.324 970 39.5 315.2
B 13.6 9.4 0.081 1,511 22.2 119.0 21.2 15.7 0.294 1,406 51.9 413.2
C 13.5 9.3 0.079 1,774 25.6 136.2 20.3 15.2 0.264 1,668 56.9 441.4
D 13.2 9.2 0.076 2,283 30.3 161.1 19.2 14.6 0.233 1,844 57.4 426.9
Site 2 A 19.2 12.0 0.190 618 18.6 117.5 28.8 16.9 0.564 618 41.4 348.4
B 16.8 10.3 0.129 1,063 24.1 134.9 24.5 15.7 0.385 1,026 50.4 395.5
C 16.6 13.1 0.172 1,471 33.4 248.3 24.2 17.8 0.439 1,185 58.1 515.1
D 18.0 14.2 0.203 1,787 38.2 285.1 23.0 17.0 0.376 1,170 51.4 440.3
Oak-dominated natural deciduous forest (Quercus mongolica and Q. variabilis) Site 1 A 10.1 8.7 0.046 948 8.3 43.4 18.2 12.1 0.193 905 20.5 131.6
B 8.8 8.8 0.037 1,250 8.6 45.6 15.5 11.9 0.140 1,595 26.2 174.1
C 10.7 9.3 0.052 1,810 16.5 89.2 15.6 11.6 0.140 2,069 34.8 216.2
D 9.5 9.8 0.048 2,672 21.0 122.9 14.7 11.4 0.133 1,940 33.9 222.1
Site 2 A 20.1 14.0 0.250 491 16.2 123.0 27.6 19.6 0.664 1,474 38.6 340.5
B 21.3 15.5 0.303 715 25.7 214.1 28.0 16.4 0.534 1,429 45.1 364.9
C 21.3 15.3 0.309 983 35.6 294.2 26.7 16.1 0.519 2,054 62.2 503.6
D 16.7 13.1 0.218 2,144 53.8 430.7 22.1 13.6 0.349 2,144 72.5 567.5

The average values at tree level statistics were provided based on the living trees through all measurement periods by excluding any mortality and ingrowth trees. The inventory of Korean white pine plantation was carried out firstly in 1996 and lastly in 2014 for the site 1 and firstly in 1999 and lastly in 2016 for the site 2. The inventory of oak-dominated natural deciduous forest was carried out firstly in 1996 and lastly in 2017 for the site 1 and 2. The statistics and no. of trees per ha were calculated based on the plot size applied with the buffer zone (e.g., 16 m × 16 m or 30 m × 30 m) by plot of each site.

DBH: diameter at breast height.

J Ecol Environ 2022;46:- https://doi.org/10.5141/jee.22.013
© J Ecol Environ