1907967264

PRACE INSTYTUTU BADAWCZEGO LEŚNICTWA, Seria A

870

Warszawa 1999

Marian SUWAŁA

Instytut Badawczy Leśnictwa

Zakład Użytkowania Lasu

ul. Bitwy Warszawskiej 1920 Roku, nr 3

00-973 Warszawa

e-mail: [e-mail]

Wydajność pracy i koszt pozyskiwania drewna W PÓŹNYCH TRZEBIEŻACH W DRZEWOSTANACH SOSNOWYCH

EFFICIENCY AND COST OF HARVESTING IN LATE THINNING OF SCOTS PINE STANDS

Abstract: Work efficiency and technical cost of 1 m³ wood han/esting with 5 chosen technological processes (with chain saw, one grip harvester, as well as skidder, forwarder and horse) were investigated. Exploitation cost of short wood method with utilisation of Chain saw and forwarder was the lowest. This method is efficient also with harvester. The increase of work efficiency and decrease of wood han/esting costs were noted when the distances between operational strip roads was diminishing.

Key words: Scots pine stands thinning, wood han/esting, work efficiency, han/esting unit cost.