Wood Density Surveys of the Minor Species of Yellow Pine in the Eastern United States. Part I. Spruce Pine (Pinus Glabra Walt.)

摘要

Spruce pine (Pinus glabra Walt.) was sampled over its entire range at 35 different locations. Specific gravity was determined on increment cores in an extracted and unextracted condition. Tree-increment core specific gravity relations were examined, and equations for predicting tree specific gravity developed. Geographic variation in the specific gravity of spruce pine is discussed. (Author)