特集：第16回国際ワークショップ ユ－ラシア東部における現在の地表プロセスと長期環境変動
Relationships between Long- and Short-term Environmental Information Based on Two Lake-catchment Systems in East Eurasia
2020 年 41 巻 3 号 p. 211-225
詳細
2020 年 41 巻 3 号 p. 211-225
Relationships between long- and short-term records of lacustrine environments are examined using short and long cores obtained from Lake Baikal (Russia) and Lake Biwa (Japan). The connectivity and interactive availability of the environmental information is studied. Short surface cores from various points in Lake Baikal show similar trends in terms of environmental fluctuations. Similar trends in environmental changes are also observed from some short cores obtained from Lake Biwa. The environmental changes recorded in these cores are within the range of interglacial periods for both lakes. Examination of the sedimentation rate corresponding to short and long core information suggest that century-scale events and/or environmental changes may be detected from the longest sediment records at the Academician Ridge of Lake Baikal while decadal events and/or environmental changes may be detected from the long records of Lake Biwa.
