Table 8. Net volume of sawtimber on timberland by species group and diameter class, Pennsylvania, 2002
(Standard error as percentage of total)
__________________________________________________________________________________________________________________________
Diameter class (inches at breast height)
Species group _______________________________________________________________________________________ All
9.0- 11.0- 13.0- 15.0- 17.0- 19.0- 21.0- classes
10.9 12.9 14.9 16.9 18.9 20.9 28.9 29.0+
__________________________________________________________________________________________________________________________
White spruce 100.0 .0 .0 .0 .0 .0 .0 .0 100.0
Red spruce 62.1 70.8 .0 .0 .0 .0 .0 .0 59.1
Red pine 38.4 46.6 66.1 74.4 85.8 .0 .0 .0 51.5
Pitch pine 30.0 22.5 37.9 35.0 100.0 51.2 .0 .0 21.8
Eastern white pine 16.4 18.0 18.3 22.6 21.6 34.3 23.1 41.3 12.9
Virginia pine 27.6 30.1 31.6 100.0 100.0 .0 .0 .0 26.9
Other yellow pines 29.9 31.1 70.9 100.0 .0 .0 .0 .0 26.1
Northern white-cedar .0 .0 .0 .0 .0 .0 100.0 .0 100.0
Eastern hemlock 11.0 10.8 12.4 13.8 16.6 26.2 22.7 50.1 9.4
Other softwoods 39.1 35.1 70.8 72.9 .0 .0 100.0 .0 30.8
___________________________________________________________________________________________________
Total softwoods 8.2 8.5 10.6 11.3 13.3 19.5 16.0 31.8 7.3
___________________________________________________________________________________________________
Red maple .0 5.1 6.5 7.2 9.0 14.7 15.3 57.9 4.9
Sugar maple .0 9.8 10.5 12.3 15.4 22.5 25.4 52.2 8.4
Yellow birch .0 17.9 26.3 34.4 62.6 .0 100.0 .0 15.0
Paper birch .0 48.6 73.4 70.8 100.0 .0 .0 .0 39.7
Hickory .0 13.6 14.6 24.3 20.6 38.9 30.1 .0 10.4
American beech .0 11.9 15.0 16.1 19.4 27.3 26.5 .0 10.5
White ash .0 10.1 11.8 14.0 20.6 24.8 28.3 76.5 9.7
Yellow-poplar .0 15.0 16.9 15.8 17.7 24.4 17.8 70.9 11.1
Blackgum .0 22.4 32.4 50.3 70.8 60.4 100.0 .0 21.3
Aspen .0 15.2 16.0 24.7 31.0 75.9 100.0 .0 12.4
Black cherry .0 8.6 9.9 10.0 12.2 16.3 15.7 50.5 7.1
White oak .0 9.8 11.2 12.2 16.7 20.4 20.9 47.9 7.8
Northern red oak .0 8.3 8.6 9.1 10.3 11.9 13.7 29.6 6.0
Other white oaks .0 7.2 8.9 10.3 13.0 20.2 25.0 50.7 6.8
Other red oaks .0 10.1 10.6 13.4 14.5 18.5 18.6 58.8 8.1
American basswood .0 22.2 20.3 23.3 33.0 58.9 57.9 100.0 16.0
Elm .0 21.9 25.1 30.2 47.3 60.2 71.5 .0 17.6
Other hardwoods .0 7.9 11.2 12.1 18.5 21.5 26.2 59.2 7.3
___________________________________________________________________________________________________
Total hardwoods .0 2.5 3.1 3.5 4.3 5.9 6.5 16.2 2.4
___________________________________________________________________________________________________
Total, all species 8.2 2.4 2.9 3.4 4.1 5.7 6.1 14.5 2.3
__________________________________________________________________________________________________________________________