樟子松林分成熟年龄的研究

Study on Mature Age of Pinus sylvestris var.mongolica Litv.Stand

在樟子松人工林生长收获模型的基础上,建立了立地指数20、初始密度4400株/hm^(2)的樟子松林的出材率表,推算出小径材、中径材和大径材的数量成熟龄分别为15年、31年和55年;工艺成熟龄分别为13年、30年和50年,林分经济成熟龄为22年。本文的研究方法及结论对本地区樟子松人工林的经营与收获具有一定的借鉴意义。

In this paper,the timber-produced rate table of Pinus sylvestris var.mongolica Litv.?plantation with site index of 20 and initial density of 4400 trees per hectare was established based on the growth and harvest model of the Pinus sylvestris var.mongolica Litv.plantation,the quantitative maturity ages of small,medium and large diameter timber were 15,31 and 55 years respectively,and the economic maturity age of stand was 22 years.The research methods and conclusions of this paper would give some useful and meaningful references for the management and harvest of Pinus sylvestris var.mongolica Litv.plantation in this area.