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阿蘇カルデラ北部、阿蘇谷千町無田ボーリングコアの植物珪酸体および微粒炭分析
http://hdl.handle.net/2298/36622
http://hdl.handle.net/2298/3662237968cfe-c827-4d1c-8ced-fc052c3268e4
名前 / ファイル | ライセンス | アクション |
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119_17.pdf (1.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-03-31 | |||||
タイトル | ||||||
タイトル | 阿蘇カルデラ北部、阿蘇谷千町無田ボーリングコアの植物珪酸体および微粒炭分析 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Aso caldera, phytolith, vegetation history, macroscopic charcoal, environmental change, 阿蘇カルデラ, 植物珪酸体, 植生変遷, 微粒炭, 環境変遷 | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
宮縁, 育夫
× 宮縁, 育夫× 杉山, 真二× 佐々木, 尚子 |
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別言語の著者 |
宮縁, 育夫
× 宮縁, 育夫× 杉山, 真二× Sasaki, Naoko |
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内容記述 | ||||||
内容記述 | Holocene environmental changes and vegetation history are constructed using phytolith and macroscopic-charcoal analyses of a 23-m-deep drilling core obtained at the Senchomuta marsh in Asodani Valley, northern part of Aso caldera, SW Japan. An intra-caldera lake existed in the Asodani Valley prior to approximately 9 cal ka( calibrated 14C age). Multiple large flood events occurred during the period 8.9–8.1 cal ka and emplaced thick sandy deposits in the valley basin. Thereafter, the center of the Asodani Valley( northern part of caldera floor) changed to swampy and fluvial environments. Sasa (cool-temperature dwarf bamboo) grasslands and/or forests with understory Sasa covered slopes of the Asodani Valley basin between 11 and 9 cal ka. Sasa phytoliths significantly increased at ca. 7.3–6.5 cal ka, but thereafter decreased. Miscanthus (Japanese pampas grass) grasslands existed continuously on the slopes. Macroscopic-charcoal particles were abundant during the last 6000 years, and the peak (6.1 cal ka) amount of charcoal particles is consistent with that of Miscanthus phytoliths. This indicates that the existence of Miscanthus grassland might be related to fire events. Inside the Asodani Valley, Phragmites (reed) became established continuously along the shore of the intra-caldera lake (prior to ca. 9 cal ka) and in subsequent marshes. Gramineae phytoliths were detected predominately through all horizons of the drilling core, whereas a small amount of arboreal phytolith was observed at most horizons. We, therefore, believe that forests existed on steep slopes such as the caldera wall where human impacts were small, although Sasa and Miscanthus grasslands were maintained by human activity outside Aso caldera. |
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書誌情報 |
地学雑誌 巻 119, 号 1, p. 17-32, 発行年 2010 |
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ISSN | ||||||
収録物識別子 | 0022135X | |||||
書誌レコードID | ||||||
収録物識別子 | AN00322536 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
関連識別子 | http://doi.org/10.5026/jgeography.119.17 | |||||
権利 | ||||||
権利情報 | © 2010 公益社団法人 東京地学協会 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
1877502 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 453.8 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | Phytolith and Macroscopic Charcoal Analyses of the Senchomuta Drilling Core in Asodani Valley, Northern Part of Aso Caldera, Japan | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | アソ カルデラ ホクブ アソダニ センチョウムタ ボーリング コア ノ ショクブツ ケイサンタイ オヨビ ビリュウ タン ブンセキ | |||||
出版者 | ||||||
出版者 | 公益社団法人 東京地学協会 | |||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | https://www.jstage.jst.go.jp/article/jgeography/119/1/119_1_17/_article/-char/ja/ |