缺少专用的木材采运设备,是山地森林开发缓慢的原因之一。现有的木材采运工艺主要是采用集材拖拉机,而集材拖拉机会造成土壤板结和降低土壤的吸水性能,在很多情况下会形成地表迳流和水土流失。因此,在超过20°的坡地(贝加尔湖流域超过15°)完全禁止皆伐,而允许采用的任意择伐、群 The lack of dedicated timber collection and transportation equipment is one of the reasons for the slow development of mountain forests. The existing wood harvesting technology mainly uses skid-mounted tractors, and skid-mounted tractors cause soil compaction and reduce the water absorption performance of the soil. In many cases, surface turbulence and soil erosion occur. Therefore, clear cuts are completely prohibited on sloping lands over 20° (above 15° in the Baikal basin), but arbitrary cuts, groups allowed