State Report for Pennsylvania

For Pennsylvania, estimated merchantable wood volume is expected to decrease from 44.378 billion cubic-feet to 43.588 billion (a change of -1.8%), while estimated sawlog wood volume is expected to increase from 26.625 billion cubic-feet to 26.762 billion (0.5%). Estimated merchantable bole biomass is expected to decrease from 814.57 million tons to 781.05 million (-4.1%), while estimated stump biomass is expected to decrease from 45.529 million tons to 39.192 million (-13.9%), and estimated tops and limbs biomass is expected to increase from 194.56 million tons to 325.39 million (67.2%). Finally, estimated aboveground biomass is expected to increase from 1.077 billion tons to 1.1722 billion, a change of 8.8%.

Figure 1: Percent difference in volume and biomass for Pennsylvania

Species breakdown

The top ten species in Pennsylvania in terms of standing biomass are red maple, northern red oak, black cherry, sugar maple, chestnut oak, sweet birch, white oak, eastern hemlock, white ash, and yellow- poplar. These species account for 77.1% of the total aboveground biomass and 76% of the total merchantable volume. For merchantable wood volume, the species with the smallest percent change was white oak 0%, while the largest percent change was with black cherry -8.2%. For total aboveground biomass, the species with the smallest percent change was yellow- poplar 0.3%, while the largest percent change was with eastern hemlock 28.2%. For sawlog wood volume, the species with the smallest percent change was yellow- poplar 0%, while the largest percent change was with sugar maple 9%. For merchantable bole biomass, the species with the smallest percent change was red maple 2.4%, while the largest percent change was with white ash -13.8%. For stump wood and bark biomass, the species with the smallest percent change was red maple -3.1%, while the largest percent change was with white ash -44.8%. For top and limb biomass, the species with the smallest percent change was white ash 14.8%, while the largest percent change was with eastern hemlock 154.3%.

Figure 2: Percent difference in total aboveground biomass and merchantable volume for the top ten species in Pennsylvania

Figure 3: Percent difference in component biomass and volume for the top ten species in Pennsylvania