| 摘要 |
<p num="1"><br/><br/> ABSTRACT<br/> The invention relates to a method for thinning<br/>a forest by means of a wheeled harvester and a wheeled<br/>forwarder comprising a driver''s cab and a load carrier<br/>located behind the cab. The harvester (3) is caused<br/>to advance in existing forest stands (1) in routes<br/>optimally selectable with regard to the characteristics<br/>of the stand, between main haul roads or strip roads<br/>close to each other, and is parked on suitable places<br/>along the routes for felling trees on each parking<br/>place. The trees are limbed and placed underneath<br/>the harvester between the wheels thereof, and the<br/>forwarder (4) is caused to follow the harvester in<br/>the same route as this and take care of the tree stems<br/>placed underneath the harvester and left behind it.<br/>This is achieved in that the felled trees lying in<br/>front of the forwarder are lifted by it and moved<br/>over and rearwards past the cab of the forwarder to<br/>the load carrier situated behind the cab. As the for-<br/>warder is advanced along the route, it collects the<br/>tree stems for landing them at a suitable main haul<br/>road.<br/><br/> Fig. 1 elected for publication<br/> |
