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Hokkaido University Collection of Scholarly and Academic Papers >
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Late Quaternary variation of lignin composition in core MD01-2421 off central Japan, NW Pacific
| Title: | Late Quaternary variation of lignin composition in core MD01-2421 off central Japan, NW Pacific |
| Authors: | Yamamoto, Masanobu Browse this author →KAKEN DB | | Ichikawa, Yutaka Browse this author | | Igarashi, Yaeko Browse this author | | Oba, Tadamichi Browse this author |
| Keywords: | Lignin | | Vegetation | | Tetramethylammonium hydroxide (TMAH) pyrolysis | | Glacial | | Central Japan |
| Issue Date: | 20-Dec-2005 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Palaeogeography, Palaeoclimatology, Palaeoecology |
| Volume: | 229 |
| Issue: | 3 |
| Start Page: | 179 |
| End Page: | 186 |
| Publisher DOI: | 10.1016/j.palaeo.2005.06.021 |
| Abstract: | In order to understand the responses of terrestrial vegetation in central Japan to global climate changes, we have generated the record of lignin composition from Core MD01-2421 off central Japan in the NW Pacific during the last 145,000 years by tetramethylammonium hydroxide (TMAH)-pyrolysis-gas chromatography–mass spectrometry (GC/MS). The relative abundance of lignin was significantly low in early MIS-1 and MIS-5e and higher in MIS-5c to early MIS-4. This reflects glacial–interglacial changes in sea level and riverine runoff. The ratio of syringyl (S)- to vanillyl (V)-phenols (S / V ratio), which is a contribution index of angiosperms against gymnosperms, was lower in MIS-2, MIS-4 and MIS-6, reflecting the glacial–interglacial variation of air temperature. The ratio of cinnamyl (C)- to vanillyl (V)-phenols (C / V ratio), which indicates the contribution of grasses, was higher in late MIS-2, early-mid MIS-3 and MIS-6. The periods of higher C / V ratio correspond to the periods of lower sea surface temperatures (SSTs), suggesting a dry and cold climate in late MIS-2, mid-MIS-3 and MIS-6. |
| Relation: | http://www.sciencedirect.com/science/journal/00310182 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/28774 |
| 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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