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Response of vegetation in central Japan to precession during the last 147,000 years : A lignin record from Lake Biwa core BIW08-B
| Title: | Response of vegetation in central Japan to precession during the last 147,000 years : A lignin record from Lake Biwa core BIW08-B |
| Authors: | Ohira, Fukashi Browse this author | | Yamamoto, Masanobu Browse this author →KAKEN DB | | Takemura, Keiji Browse this author →KAKEN DB | | Hayashida, Akira Browse this author →KAKEN DB |
| Keywords: | lignin | | vegetation | | TMAH pyrolysis | | glacial | | Lake Biwa | | central Japan | | late Pleistocene | | BIW08-B |
| Issue Date: | 28-Oct-2014 |
| Publisher: | Elsevier |
| Journal Title: | Quaternary international |
| Volume: | 349 |
| Start Page: | 59 |
| End Page: | 67 |
| Publisher DOI: | 10.1016/j.quaint.2013.10.059 |
| Abstract: | To understand the responses of terrestrial vegetation in central Japan to global climate changes, we generated a record of lignin composition from core BIW08-B in Lake Biwa, central Japan, during the last 147,000 years by TMAHepyrolysiseGC/MS. Lignin abundance was intermittently elevated and associated with a high ratio of cinnamyl (C) to vanillyl (V) phenols (C/V ratio) of lignin, suggesting episodic inflows of herbaceous plant-derived organic matter into Lake Biwa. The largest inflow occurred during the last deglaciation. Variation in the ratio of syringyl (S) to vanillyl (V) phenols (S/V ratio), which is a contribution index of angiosperms against gymnosperms, showed a precession-like cycle, was consistent with a pollen record from Lake Biwa, and showed a pattern similar to the S/V record from an offshore marine site in the northwestern Pacific. The variation reflected the regional replacement of cool-temperate deciduous broadleaf forests, subalpine conifer forests, and Japanese cedar forests in central Japan caused by the repetition of warmer, dry and cooler, wet climates on a precession cycle. (c) 2013 Elsevier Ltd and INQUA. All rights reserved. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/59273 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 山本 正伸
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