Abstrakt.





















Key words:













20




ground lead








highlead
skyline

skyline
logging






Photo 1. Supporting tree with rigging to high-
-lead skidding (Pearce, Stenzel 1972)


























R. 16. Zeszyt 39 / 2B / 2014
21














cable crane



















)

(inhaul drum) roboczej)
(mainline) outhaul drum)

(haulback).
(strawline).

22
Zalety






Wady









Zalety






Wady














R. 16. Zeszyt 39 / 2B / 2014
23
Zalety







Wady





)





slackpulling




Zalety








Wady









24










































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25
Tab. 1.

Table 1.
Forest District in 2011

























Tab. 2.

Table 2. Income and costs of wood extraction with Larix 550 system and forwarder John Deere 1010E in

Sortyment WD S2A S2B S4









26











































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