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我省现有淡竹林20多万亩,约占整个竹林面积的三分之一.为了寻求简便适用的淡竹材积表,本文拟从分析淡竹的秆重与胸围的相关性入手,研究淡竹一元材积表编制的经验公式,同时论证其可靠程度,以便今后根据此式编制淡竹一元材积表提供依据.一、材料和方法淡竹材积的计算,系采用按秆重计算的方法进行.具体地说,是将收集到的420株成熟伐倒竹的数据(表1),先用图解法对每个胸围级秆重y与相对应的胸围X进行相关分析,得相关曲线图.据此,选
In our province, the existing light bamboo forest more than 20 million mu, accounting for about one-third of the entire bamboo area.In order to seek simple and suitable light bamboo volume table, this article from the analysis of light bamboo stalk weight and the relationship between the chest start, Table prepared by the empirical formula, while demonstrating its reliability, in order to formulate the basis of this type of light bamboo one-volume table provides a basis I. Materials and methods Light bamboo volume calculation, the use of stalk weight calculated by the method Specifically, is According to the data of 420 ripening bamboo logs collected (Table 1), the relationship between the weight of each bust-class stalk and the corresponding chest X was analyzed by graphic method.