各種樹種之平均生物質生長率(乾重)

Forest types		Annual increment in biomass (tonnes dm/ha/year)
Tropical
	Acacia spp.	15.0
	Eucalyptus spp.	14.5
	Tectona grandis	8.0
	Pinus spp.	11.5
	Pinus caribaea	10.0
	Mixed hardwoods	6.8
	Mixed fast-growing hardwoods	12.5
	Mixed softwoods	14.5
Temperate
	Douglas fir	6.0
	Loblolly pine	4.0