Bulk density [green weight per cubic foot of debarked logs] was determined for yellow-poplar sawlogs. Bulk density varied significantly with log position in the tree but did not vary significantly with scaling diameter. The highest bulk density values occurred in butt logs and the lowest in middle logs. The bulk density values for top logs were higher than values for middle logs. There was substantial variation in bulk density between trees at the same log height level. Bulk density average values are: 50.8 pounds per cubic foot [pcf] in butt logs. 46.1 pcf in middle logs, and 47.5 pcf in top logs.
机构:
W Virginia Univ, Div Forestry & Nat Resources, Davis Coll Agr Forestry & Consumer Sci, Morgantown, WV 26506 USAW Virginia Univ, Div Forestry & Nat Resources, Davis Coll Agr Forestry & Consumer Sci, Morgantown, WV 26506 USA