枝径与叶面积协调生长关系的比较研究

应用多元统计分析方法对同树种同一个体、不同个体、不同树种等的不同龄枝、不同类型枝的枝基断面参数与叶面积间的协调生长关系进行研究。结果表明，被测树种同一个体枝基横断面积参数较直径参数与叶面积呈现更显著的协调生长关系，这种协调关系在2至多年生枝中较当年枝表现更为显著。在分枝水平(即各级分枝层次)上这种协调性是以个体为单位体现的，受环境影响较大，不同个体不尽一致；在树干(整株)水平(即树干断面参数和总叶面积层次)上表现为种内不同个体间差异不大。

The Relationships of Harmony Growth Between Twig and Leaf Area on It in Some Trees

The relationships of harmonious growth between transect parameters of twig(including different ages and types) and leaf-area on it in the same and different individual of same species,and different species were approached by aid of the multivariate statistical analysis.It was indicated that:the relationship of harmonious growth is more significant between twig transect area and the leaf-area than that between twig diameter and the leaf-area in same individual of all of three species sampled:Tilia amurensis,Syringa oblata and Sambucus williamsii.It is more significant in biennial twig than annual twig in these species.It is proved that: the relationship,generally in branch level,is present in a single individual and influenced by environment,it is quite different among individuals.In truck level,it is present in different individual inner-species and the difference is unapparent among different individuals.