林业与农业相比,受自然条件的制约较大。从整地到植树、抚育等一系列的营林作业都要一边在林内移动一边进行作业,加之保护自然环境的要求,不可能简单地象农业那样他用大型拖拉机等自走机械。因而,营林的各道工序除掉一部分依靠小型的手持机械以外,很多还是依靠手工劳动。即使是使用手持机械的工序,其劳动强度也是相当大的。 Compared with agriculture, forestry is greatly constrained by natural conditions. From land preparation to tree planting and tending, a series of forest management operations must be carried out while moving within the forest. In addition to the requirement of protecting the natural environment, it is impossible to simply use self-propelled machinery such as a large tractor like agriculture. Therefore, in addition to relying on small hand-held machinery, many of the forestry operations rely on manual labor. Even the process using hand-held machines is quite labor-intensive.