南八甲田山二三湿原の花粉分析学的研究
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概要
- 論文の詳細を見る
Two moors called "Oseyachi" (about 1200m above sea level) and "Oyachi" (900m) lie in the South Hakkoda Mountains. The peat samples obtained from the moors were studied pollen-analytically. From the pollen sequences in the profiles of the moors three stages were recognized for the profiles successively from the surface to the bottom. 1 A'ies-Fagus stage (the first peat layer) 2 Fagus stage (the middle peat layer) 3 Abies-Betula stage (the third peat layer) Abies-Fagus stage is characterized by the gradual increase of conifers and also by the decrease of Fagus. The Fagus stage is distinguished by the marked expansion of Fagus and the Abies-Betula stage by the dominance of Abies and Betula. The results of the present study are quite similar to those of Takadayachi moor in the North Hakkoda Mountains. Therefore, the first and second peat layers of Oseyachi and Oyachi may correspond to Nakamura's Period R III and R II respectively, and the third peat layer probably dates back to a cold age, Period R I-II or R I.
- 日本生態学会の論文
- 1963-12-01