![]() ![]() The average crown exposure is 4,051 m2/row and the average forest floor exposure is 107.82 m2 or 1.08 percent hectare and the residual stands damage 12.27 percent/ha. The results show that average productivity is 9.81 m3/trip or 12.4 m3/hour, fixed cost Rp 431,249/hour, operation cost Rp 43,178/hour and extraction cost Rp 39,000/m3. Ecological impacts were determined by crown and forest floor exposures as the result of logging activities. Extraction cost was consisted of fixed cost, operation cost and its work productivity. ![]() The productivity was counted by skyline productivity per hour. The objective of this study is to determine the productivity, extraction cost and ecological impacts of using Thunderbird TTY70 skyline system. Logs extraction using skyline system is an alternative effort for reducing forest damage, especially in the heavy terrain areas of limited production forest. is a friendly environment while disadvantage high capital This operation skyline system has an advantage i.e. ![]() ![]() ![]()
0 Comments
Leave a Reply. |