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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学年代測定研究
  4. 4

北海道東部(阿寒湖No.1・網走湖豊住No.1)の2つのボーリングコアの花粉分析とAMS14C年代測定による後期更新世と完新世の植生変遷

https://doi.org/10.18999/nagubc.4.16
https://doi.org/10.18999/nagubc.4.16
bb32254f-4141-4e55-9809-e2622bdfcb4e
名前 / ファイル ライセンス アクション
016-026_2019.pdf 016-026_2019.pdf (3.3 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2020-08-04
タイトル
タイトル 北海道東部(阿寒湖No.1・網走湖豊住No.1)の2つのボーリングコアの花粉分析とAMS14C年代測定による後期更新世と完新世の植生変遷
言語 ja
その他のタイトル
その他のタイトル Findings on vegetation changes since Late Pleistocene confirmed at two boring cores in the eastern part of Hokkaido (No.1 Lake Akan and No.1 Toyozumi, Lake Abashiri) by pollen analysis and AMS 14C Dating
言語 en
著者 星野, フサ

× 星野, フサ

WEKO 100788

ja 星野, フサ

Search repository
岡, 孝雄

× 岡, 孝雄

WEKO 100789

ja 岡, 孝雄

Search repository
春木, 雅寛

× 春木, 雅寛

WEKO 100790

ja 春木, 雅寛

Search repository
中村, 俊夫

× 中村, 俊夫

WEKO 100791

ja 中村, 俊夫

Search repository
南, 雅代

× 南, 雅代

WEKO 100792

ja 南, 雅代

Search repository
近藤, 務

× 近藤, 務

WEKO 100793

ja 近藤, 務

Search repository
米道, 博

× 米道, 博

WEKO 100794

ja 米道, 博

Search repository
関根, 達夫

× 関根, 達夫

WEKO 100795

ja 関根, 達夫

Search repository
山崎, 芳樹

× 山崎, 芳樹

WEKO 100796

ja 山崎, 芳樹

Search repository
若松, 幹男

× 若松, 幹男

WEKO 100797

ja 若松, 幹男

Search repository
Hoshino, Fusa

× Hoshino, Fusa

WEKO 100798

en Hoshino, Fusa

Search repository
Oka, Takao

× Oka, Takao

WEKO 100799

en Oka, Takao

Search repository
Haruki, Masahiro

× Haruki, Masahiro

WEKO 100800

en Haruki, Masahiro

Search repository
Nakamura, Toshio

× Nakamura, Toshio

WEKO 100801

en Nakamura, Toshio

Search repository
Minami, Masayo

× Minami, Masayo

WEKO 100802

en Minami, Masayo

Search repository
Kondo, Tsutomu

× Kondo, Tsutomu

WEKO 100803

en Kondo, Tsutomu

Search repository
Yonemichi, Hiroshi

× Yonemichi, Hiroshi

WEKO 100804

en Yonemichi, Hiroshi

Search repository
Sekine, Tatsuo

× Sekine, Tatsuo

WEKO 100805

en Sekine, Tatsuo

Search repository
Yamazaki, Yoshiki

× Yamazaki, Yoshiki

WEKO 100806

en Yamazaki, Yoshiki

Search repository
Wakamatsu, Mikio

× Wakamatsu, Mikio

WEKO 100807

en Wakamatsu, Mikio

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 Lake Akan
キーワード
主題Scheme Other
主題 Lake Abashiri
キーワード
主題Scheme Other
主題 AMS 14C dating
キーワード
主題Scheme Other
主題 pollen analysis
キーワード
主題Scheme Other
主題 global warming
抄録
内容記述 The authors conducted pollen analysis on 35 samples collected from No.1 core of Lake Akan and on 100 samples from No.1 core of Toyozumi, Lake Abashiri and also performed AMS 14C dating on 6 samples from the area, where vegetation changes have been confirmed. Detailed research investigation from expert perspective on peripheral vegetation of the two sites, 50 km away from each other, demonstrated that the vegetation was different considerably. The comparison of the point at the depth of 11m in the upper part of both the two cores indicated the fact in common that Quercus was the main vegetation. It is assumed that these Quercus-dominant parts are sediments formed during the Warm Period. The results from pollen analysis on the topmost part, A zone of both cores, showed that Abies sachalinensis and Alnus hirsuta increased in the No.1 core of Lake Akan and Abies sachalinensis and Picea jezoensis were on the downward trend in the No.1 core of Toyozumi, Lake Abashiri. While Abies sachalinensis and Alnus were on the increase in and after 529-307 (95.4%) cal BP in No.1 core, Lake Akan, evergreen conifer was declining in and after 1065-934 (95.4%) cal BP in No.1 core of Lake Abashiri. Since such a difference is due to the difference in the nature of the underground soil between the two sites, we have considered that past geohistrical effects should also be fully taken into account when we take measures against the effects of global warming.
言語 en
内容記述タイプ Abstract
抄録
内容記述 阿寒湖No.1コアで35試料、網走湖豊住No.1コアで100試料の花粉分析を行った。植生に変化が見られる位置で6点のAMS14C年代測定を行った。50km離れた2地点の周辺植生を詳細に検討するとかなりの違いがみられた。両コアの上部11mを比較したところコナラ亜属Quercusの多い部分が共通していた。このコナラ亜属の多い部分は温暖期の堆積物と考えられる。この両コアの最上部のA帯について花粉分析結果を比べると阿寒湖No.1コアではトドマツAbies sachalinensisとハンノキAlnus hirsutaに増加傾向が見られ、網走湖豊住No.1コアのA帯においてはトドマツとエゾマツPicea jezoensisに減少傾向が見られる。阿寒湖No.1コアでは529-307calBP(95.4%)以降トドマツとハンノキ属の増加があり、網走湖No.1では1065-934calBP(95.4%)以降トドマツなど常緑針葉樹coniferの減少期となった。このような違いが存在したことは両地点の地史(地下地質)の違いによるものであり、地球温暖化研究など気候影響を考慮する際には過去の地史的な影響も反映されるべきである。
言語 ja
内容記述タイプ Abstract
出版者
言語 ja
出版者 名古屋大学宇宙地球環境研究所
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/nagubc.4.16
ID登録タイプ JaLC
書誌情報 ja : 名古屋大学年代測定研究

巻 4, p. 16-26, 発行日 2020-06
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