Harvesting Production in Uneven-Aged Loblolly-Shortleaf Pine Stands: The CrossettFarm Forestry Forties

摘要

Two Arkansas pine stands have been managed using uneven-aged managementtechniques since 1937. For many years the stands were harvested annually, but they have been harvested every 5 years since the 1970's. A study to determine productivity of the harvesting system was completed in the fall of 1990. The system consisted of chain saw felling and grapple skidding. Felling and skidding productivity varied significantly with the diameter of stems or average stem volume removed from each stand. The diameter distribution of the removed material caused significant differences in productivity between the stands.