Studies on Bog Lakes:II. Floating Islet Formation from the False Bottom
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概要
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The writer observed that floating islets were derived from parts of the false bottom in one of many bog lakes in the Sphagnum-swamp of Kritappu on the eastern Pacific coast of Hokkaido.<BR>In the bog lake, in which floating islets were found, are observed several water plants whose stems are creeping over the false bottom, that is, thence, usually suspended independently in water 30-50 cm in depth, while the true bottom is 1.0-1.5m in depth. The false bottom of this hog lake is well developed and becomes firm. On account of the action of decomposition gases accumulated under the false bottom, parts of it are risen to the water surface as floating islets. The colour of the false bottom is dark brown, but floating islets have the black surface, on which a few plants sometimes grow. The influence of the false bottom upon water temperature was not observed at the time of the reseach made in December, 1936.
- 日本陸水学会の論文
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