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通过连续２０年的持续调查，查明了杉木分布中心带北缘的族德杉木不同年龄林分生物量的变化动态及其与数量成熟的关系，提出杉木采伐年龄确定的主要依据和应考虑的有关因素。
Through the continuous investigation for 20 years, the dynamic changes of biomass and its relationship with the quantitative maturity of Pinus koraiensis Cunninghamii population at the north edge of the fir distribution center were ascertained, and the main basis for determining the harvesting age of Cunninghamia lanceolata Related factors.