秩父山地の温帯混交林におけるパッチ構造と地形
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概要
- 論文の詳細を見る
TANAKA, Nobuyuki (For. & For. Prod. Res. Inst., Ibaraki). 1985. Patchy structure of a temperate mixed forest and topography in the Chichibu Mountains, Japan. Jap. J. Ecol., 35 : 153-167. The structure and floristic composition of a primeval temperate mixed forest on an accidented slope in the Chichibu Mountains was studied from the viewpoint of vegetation dynamics. This forest consisted of patches which were identified by association analysis using the structural as well as floristic attributes. Seven patches showing various structures and floristic compositions developed in the study plot. The Pterostyrax and Fraxinus patches were in the lower parts of the valley, the Betula and two Tsuga patches on the ridges, the Fagus patch in the upper part of the valley, and the Abies patch on the slope between the lower part of the valley and the ridge. The patches were classified into pioneer, building and mature phases according to differences in their tree size, stem density and total stem volume. The Pterostyrax and Betula patches were regarded as pioneer, the Abies patch as building, and the Fraxinus, Fagus and Tsuga patches as mature. The results suggested that after formation of a large gap in an accidented area, several seres would occur and various patches would arise by different processes of species invasion and competition in response to the topography.
- 日本生態学会の論文
- 1985-06-30