Estimating Crown Biomass in Loblolly Pine Plantations in the Carolina Flatwoods

摘要: Diameter at breast height, crown class, total height to base of live and dry weight components from whorls measured heights were sampled trees on 182 plots in North South Carolina summer, 1977. Equations derived estimate branchwood, needle for branches, stands. The branch model is based a logarithmic transformation Huxley's allometric equation, giving as function basal diameter, relative the stand age. tree uses either diameter ratio, or age area independent variables. Crown mass per acre predicted site index, area. accuracy precision procedures evaluated using an set data found be satisfactory 1% level. Trends biomass change investigated results suggest that it forms smaller proportion higher quality sites.