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采伐更新方式目前大体有三种情况:一是以皆伐、人工更新为主,培育整齐乔林,有人叫“大砍大造型”;二是以择伐、天然更新为主,培育复层异龄乔林,有人叫“少砍封育型”;三是以皆伐、天然更新为主,培育次生林,有人叫“大砍封育型”。1 宝鸡市采伐更新方式的回顾1.1 皆伐天然更新方式在宝鸡市除森工林场1960～1966年为集中采伐外,其他林区在采伐的指导思想上摇摆不定,一段时间不准主伐,一段时间集中采伐。1954～1977年,先后曾出现了修建宝
There are currently three modes of harvesting and rejuvenation: First, we focus on clear cutting and artificial regeneration, nurture and tidy up to Qiao Lin, some call “big cut and big form”; second, take selective cutting and natural renewal as the mainstay, Qiao Lin, some people called “less cut-off seal type”; third is to clear cutting, natural renewal-based, secondary forest cultivation, some people call “cut-off type.” 1 Review of Logging and Renewal Methods in Baoji City 1.1 Natural Update Method of Clearcutting In the period from 1960 to 1966 except for the Forest Farm in Baoji Municipality for centralized logging, other forest areas fluctuated in the guiding ideology of harvesting and were not allowed to be rearched for a period of time. For a period of time Concentrate logging. From 1954 to 1977, there have been built treasure