常緑広葉樹の葉齢構成

概要

論文の詳細を見る
Leaf age sturucture at different light conditions was studied for 14 evergreen broadleaved tree species from October 9 to December 27,1989,to clarify differences of leaf longevity among species and light conditions. The patterns of the leaf age compositions of the observed species for each light condition were compared with each other and divided into 4 groups. The species, whose pattern of leaf age composition changed with light condition, changed their position into the group with higher age leaf under more shaded conditions. The mean maximum longevities became longer under more shaded condition for most of the species. Camellia japonica, Cinnamomum insularimontanum, Cleyera japonica, Photinia glabra and Aucuba japonica, grown under a lower tree layer with a shaded environment, were assumed to have a longer leaf longevity than other species. Ilex pedunculosa, Ilex chinensis and Cinnamomum Camphora, found even in the early stage of succession with light environment, were assumed to have a shorter leaf longevity than other species. Quercus glauca, Quercun salicina and Quercus acuta, from among the species possible to dominate in a tree layer of the climax forest, were assumed to have a shorter leaf longevity than other species. The last group of species was assumed not to be adapted to a shaded environment.
日本生態学会の論文
1992-08-10