群落レベルでみたハイマツの球果生産

概要

論文の詳細を見る
The cone production of Pinus pumila scrub was studied in relation to the height and the mean annual stem elongation of the scrub at Mt. Kiso-ontake, central Japan. The cone density (number of cones/m^2) of the scrub showed no clear correlation to scrub height, suggesting the latter factor alone to never strongly affect cone production. Maximum cone density (25.3/m^2) was at tained at ca. 60cm height. The cone production of an individual stem increased with stem diameter. This trend differs from that at the scrub level : individual stems in the shorter scrubs produced only a small number of cones despite the high density of stems in the scrub. Conversely, taller scrubs had a low stem density, but individual stems carried a large number of cones. The mean annual stem elongation of the scrub showed no clear correlation with the cone density in general, although a clear relationship between these factors was evident in shorter scrubs (<50cm in height).
日本生態学会の論文
1991-08-31