Residual Stand Damages after Decreasing on Selective Cutting Diameter Limit at Forest Concession of Pt Tri Tunggal Ebony Corporation Poso District Central Sulawesi Province

Abstract

The objective of this research is to recognize the residual stand damages caused by timber harvesting after decreasing on selective cutting diameter limit on natural forest production management at forest concession of PT Tri Tunggal Ebony Corporation. The research shows that residual stand damages after decreasing on selective cutting diameter limit is 23,98%, bigger than before such as 21,06% and both of them included light damage class (< 25%). Based on damage tree population such as 1.988 pieces can be classified into heavy damage 72,30%, medium damage 12,10%, and light damage 15,60%. The results of research indicate that statistically there is no significant difference on residual stand damages caused by timber harvesting between after and before decreasing on selective cutting diameter limit.

Keywords : residual stand damages, decreasing on selective cutting diameter limit.