WOOD DENSITY AND CHEMICAL-PROPERTIES OF 2ND-GROWTH LODGEPOLE PINE

Basic densities and wood chemistry of 12 second-growth lodgepole pine trees from four sites in western Canada have been determined. Juvenile (core) wood was less dense, and had higher extractives, one-percent c austic solubilities and lignin, but lower moisture contents than did m ature wood. Contents of individual and total sugars were similar for j uvenile and mature wood. Properties of top wood - typical of thinnings - were compared with those of juvenile wood.