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本文通过对1～8年生兰考泡桐生物量的研究,揭示了各器官之间的内在联系以及变化规律:泡桐各器官生物量与(D_(1.3)~2H)有密切相关关系;树干生物量向上呈递减趋势;在中、幼龄阶段,细枝所占的比例较大,其次为中枝、大枝,6～7年以后大枝最重,其次为中枝、小枝;在树根生物量中,根桩所占的比例最大(40%～60%),各级根系生物量随树龄而异,树龄增加,较粗的根占的比例增大,而直径4cm以下的根呈减小趋势;全株各器官生物量3年生前顺序为:根>干>叶>枝;3年生后为:干>枝>根>叶>花>果。
In this paper, through the study of the biomass of 1 to 8 year old Paulownia odoratum, the internal relationships among organs and their variation patterns were revealed: the biomass of each part of Paulownia was closely related to (D_ (1.3) ~ 2H); the biomass Showed a decreasing trend. In the young and middle-aged stages, the proportion of thin branches was larger, followed by middle branches and large branches. After 6 to 7 years, the main branches were the heaviest, followed by the middle branches and twigs. Among the root biomass, The root stumps accounted for the largest proportion (40% -60%). The root biomass at all levels varied with age, the age increased, the proportion of thick roots increased, while the diameter of roots under 4 cm decreased. The order of three-year-old biomass of each organ was: root> stem> leaf> branch; after three years, stem> branch> root> leaf> flower> fruit.