新西兰近年来普遍采用一种重力滚子清理造林地的机械作业方法,此方法受到重视,并逐渐得到发展和完善。在新西兰,交通方便和地形较为平坦的地方,大多已被开垦为农牧场,或者已经造林。目前的造林地,多在缺少道路、地形复杂的边远地区,或者是已被放弃了的牧羊地。植被多为灌木丛,造林前都需要 In recent years, New Zealand has adopted a kind of mechanical operation method of cleaning the afforestation land by gravity roller. This method has been taken seriously and gradually developed and improved. In New Zealand, where traffic is relatively easy and the terrain is relatively flat, most have been reclaimed as ranches or reforested. The current afforestation, mostly in the absence of roads, terrain complex remote areas, or have been abandoned sheep. Vegetation mostly shrubs, afforestation are needed