马褂木人工林工艺成熟龄的确定

Determination of Technological Maturity Age of Liriodendron chinense Plantation

林业生产实践中经常需要计算林分的工艺成熟龄。为解决生产中一个马褂木林分工艺成熟龄的计算实例,进而对林分工艺成熟龄的计算进行了研究和探讨。理论上林分工艺成熟龄的计算方法有生长过程表结合材种出材量表法、标准地法和马尔丁法等几种。经过对比分析,认为生产中常需计算工艺成熟龄的小面积人工同龄纯林比较适宜采用马尔丁法。用此法对洪江市某处的马褂木人工林分作造纸材时的工艺成熟龄进行了计算,得出了该林分工艺成熟龄为10年。使用马尔丁法时,关键是选择好目的材种;计算参数可结合市场需求适当调整;解析木的选取以线形随机选择为好,数量30株左右即可。

It is often necessary to calculate the technological maturity of forest stands in forestry production practice.In order to solve the problem of calculating the technological maturity age of Liriodendron chinense stand in production,this paper studies and discusses the calculation of the technological maturity age of the stand.Theoretically,there are several methods to calculate the technological maturity of forest stands,such as the growth process table combined with the timber yield table,the standard plot method and the Mardin method.Through comparative analysis,this paper considers that the Maldinian method is more suitable for small area artificial pure forests of the same age,which often needs to calculate the technological maturity in production.This method is used to calculate the technological maturity age of the Liriodendron chinense plantation in Hongjiang City when it is used as papermaking timber.The technological maturity age of the plantation is 10 years.The key to use the Mardin method is to select the target species.The calculation parameters can be appropriately adjusted in combination with the market demand.Linear random selection is preferred for the selection of analytic trees,and the number is about 30.