山地森林抚育间伐,从伐木场到公路运材道很难集材,联合集材拖拉机在陡峭的山坡上集材也有局限性,且引起更大的土壤侵蚀。在山地条件下,采用索道集材更适合,型式有半悬空和悬空式。通过比较,悬空式索道集材比半悬空式索道、拖拉机集材提高工效两倍,且土壤侵 It is very difficult to collect timber from mountain forests, from logging farms to road transport roads, and to the combination of timber tractors on steep hillsides, which also leads to greater soil erosion. In mountainous conditions, the use of ropeway material is more suitable, the type of semi-suspended and suspended. By comparison, suspended ropeway material than semi-suspended ropeway, tractor skidding to improve work efficiency twice, and soil invasion