Comparison of harvester and motor-manual logging in intermediate cuttings of deciduous stands

Authors : Remigijus ZINKEVICIUS, Dainius STEPONAVICIUS, Dalius VITUNSKAS, Gintautas CINGA

Pages : 591-600

Doi:10.3906/vet-1112-47

View : 12 | Download : 6

Publication Date : 2012-10-01

Article Type : Research Paper

Abstract :Recently, new models of operational harvester heads that are suitable for work in deciduous forests and are able to process hooked trees or trees originated from stump shots have been designed. A mechanized harvesting method insert ignore into journalissuearticles values(harvester with head); is compared with conventional motor-manual harvesting methods in which a chain saw is used for felling, trimming, and crosscutting. Species composition of the sample stand was as follows: 58% aspen insert ignore into journalissuearticles values(Populus tremula);, 19% lime insert ignore into journalissuearticles values(Tilia platyphyllos);, 22% birch insert ignore into journalissuearticles values(Betula verrucosa);, and 1% oak insert ignore into journalissuearticles values(Quercus robur);. The study was completed under the aegis of the project of the 6th General Program of the EC. The labor efficiency was estimated using a time study method. Compared with common motor-manual harvesting, a UTC harvester with a CTL 40 HW head reduces the production time by about 70%. Depending on the number of timber assortments made per tree, operation of the harvester was from 1.7 to 3 times more efficient than chain saw operation.
Keywords : Key words Hardwood, harvester, harvester head, wood harvesting technology