Biomass Inventory of Federal Forest Lands at Petawawa: A Case Study

An inventory was completed of federal forest lands located near Petawawa, Ontario. Using established procedures, the inventory was designed to provide estimates of standard forest data as well as of forest biomass.The average ovendry biomass on the 18 337 ha or natural forests was 130 t/ha. For individual forest strata, averages ranged from 69 t/ha to 159 t/ha. By stand component, trees equal to or greater than 8.1 cm dbh contained 96% of total biomass. saplings contained 3%, and seedlings 1%. By tree component, stem wood accounted for 66% of total biomass. Estimates were made of biomass quantities removed; this ranges from 69% to 95% of total stand biomass, depending on harvesting method.An assessment of changes required in conventional inventory procedures for estimating aboveground biomass indicated that they would be minor, with no serious effects on cost, time, or precision.

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