Evaluation of Residual Tree Damage in Sloping Areas Due to Harvesting Operations by Manually


Unver S. , ACAR H.

AUSTRIAN JOURNAL OF FOREST SCIENCE, cilt.126, ss.119-132, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 126 Konu: 3
  • Basım Tarihi: 2009
  • Dergi Adı: AUSTRIAN JOURNAL OF FOREST SCIENCE
  • Sayfa Sayıları: ss.119-132

Özet

Harvesting operations including felling and extracting often causes physical damages to the residual stand. These physical damages result in a decline in bole quality and subsequent loss of tree values. The objective of this study was to evaluate damage to residual trees during the harvesting activities in spruce stands in Northeastern Turkey. A total of 123.5 ha study area consisting of four harvesting units were surveyed for the experiments. The average length of extracting routes examined in each of the units was 600 m. The damage was observed on approximately 42 % of total trees. Also, root and stem wounds, crown loss and broken and uprooted trees were observed. Based on initial findings of the work the most commonly observed damage type was wound on root (54 %). Findings from this work suggest that employing highlead cable yarding system would be considered to reduce the residual tree damage and increase the productivity.