Technical Report
 

Estimating aboveground biomass of shrubs and young ponderosa and lodgepole pines in southcentral Oregon

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https://ir.library.oregonstate.edu/concern/technical_reports/9c67wp10h

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  • Regression equations for estimating the aboveground biomass (ovendry weight) of individual plants of 10 shrub and 2 pine species were developed from data collected in south central Oregon. All include a single independent variable and were generated from logarithmically transformed data. Total aboveground biomass of each shrub species is predicted from canopy breadth or volume (length x width x height). Total aboveground and bole-only biomass of ponderosa and lodgepole pines (<3.5 m tall) are predicted from stem diameter, diameter squared times height, or total height. Equations for ponderosa pine were found to be site--specific for the three sampling locations. All of the regression equations are most appropriate for predicting plant biomass in the first 8 years after severe disturbance of forest sites in south central Oregon.
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