Productivity, costs and residual stand damage of timber harvesting methods in Scots pine stands with extended distance between skid trails - Time study winching@en

Productivity, costs and residual stand damage of timber harvesting methods in Scots pine stands with extended distance between skid trails - Time study winching.集材道（skid trail）间距延长的欧洲赤松（Scots pine）林分中木材采伐方法的生产效率、作业成本与林分残留损伤——绞集作业时间研究