望高比与普雷斯勒形数、实验形数的关系研究  

Relationship between Relative Diameter-Heights Ratio,Pressler Form Factor and Experimental Form Factor

作　　者：余国宝 YU Guobao(Nanjing Police Academy,Nanjing 210046,China)

机构地区：[1]南京警察学院,江苏南京210046

出　　处：《林业调查规划》2024年第3期13-16,共4页Forest Inventory and Planning

摘　　要：望高比(B)不仅是两个直径之比,还增加了两个高度之比,能更便捷、更客观地反映树干形状,是一个更理想的干形指标。在望高法求积式中,引入望高比概念,根据研究望高比的结果,提出望高比法求积式,找到了望高比、普雷斯勒形数与实验形数的关系,在进行林木蓄积量测算,尤其是单株立木材积测算中显得更加便捷、准确、实用。The relative diameter-heights ratio(B)not only refers to the ratio of two diameters,but also the ratio of two heights,which can more conveniently and objectively reflect the shape of the trunk and is a more ideal indicator of trunk shape.In the calculation of relative diameter-heights ratio,the related concept was introduced.Based on the results,this paper proposed the formula of relative diameter-heights to find the relationship between the aspect ratio,the Pressler form factor and the experimental form factor,which was more convenient,accurate,and practical in calculating forest volume,especially in calculating the volume of individual standing trees.

关 键 词：望高比 普雷斯勒形数 实验形数 单株立木材积 

分 类 号：S758.1[农业科学—森林经理学] S711[农业科学—林学]