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Human influences on formation and change in a Japanese cedar forest in the Akita region

Research Project

Project/Area Number 25450229
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Forest science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

Shichi Koji  国立研究開発法人 森林総合研究所, 立地環境研究領域, 主任研究員 (10353715)

Co-Investigator(Kenkyū-buntansha) IKEDA Shigeto  国立研究開発法人森林総合研究所, 立地環境研究領域, チーム長 (60353570)
OKAMOTO Toru  国立研究開発法人森林総合研究所, 関西支所, チーム長 (40353627)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords秋田スギ / 人間活動 / 森林管理 / 歴史史料 / 完新世 / 植生変遷 / 花粉分析 / 史料
Outline of Final Research Achievements

We reconstructed changes in the Cryptomeria japonica forest during the Holocene through pollen analysis of peat sediments collected from Akita Prefecture. Ancient documents recording past landscape use and human activity near the sampling sites were compared to reconstruct vegetation change. C. japonica was present to some degree at the beginning of the Holocene. The expansion of C. japonica occurred after 3000 cal BP at most sites. We consider that some small C. japonica groups, scattered near the sites, expanded with increasingly humid conditions. A recent decrease in C. japonica began ca. 500 cal BP of the Muromachi Period at most sites. It was associated with increases in diploxylon pines and herbaceous taxa. Moreover, results showed that Fagopyrum was cultivated at some sites. From comparison with historical documents and vegetation change, human influences, such as agriculture and timber utilization, began to increase in the end of the Muromachi Period around the Akita region.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (12 results)

  • [Journal Article] 温故知新-自然科学研究における歴史資料の活用のすすめ-2014

    • Author(s)
      岡本透
    • Journal Title

      森林立地

      Volume: 56 Pages: 81-87

    • NAID

      110009884639

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 秋田県沿岸地域における過去1万年間のスギ林変遷2016

    • Author(s)
      志知幸治、池田重人、岡本透、林竜馬
    • Organizer
      第127回日本森林学会大会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] 白神山地田苗代湿原の花粉分析からみた周辺植生の変遷2016

    • Author(s)
      池田重人、志知幸治、岡本透、篠宮佳樹
    • Organizer
      第127回日本森林学会大会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] 完新世後期における東北地方北部のスギ拡大時期2016

    • Author(s)
      池田重人
    • Organizer
      第62回日本生態学会大会
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2016-03-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] 鳥海山桑ノ木台湿原の花粉分析に基づく晩氷期以降の植生変遷2015

    • Author(s)
      池田重人、志知幸治、岡本透、林竜馬
    • Organizer
      第30回日本植生史学会大会
    • Place of Presentation
      北海道博物館(北海道札幌市)
    • Year and Date
      2015-11-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] 秋田天然スギ林地帯における完新世後期のスギの消長2015

    • Author(s)
      池田重人、志知幸治、岡本透、林竜馬
    • Organizer
      第56回日本花粉学会大会
    • Place of Presentation
      滋賀県立琵琶湖博物館(滋賀県草津市)
    • Year and Date
      2015-10-02
    • Related Report
      2015 Annual Research Report
  • [Presentation] 由利本荘市加田喜沼湿原の花粉分析に基づく完新世の森林変遷2015

    • Author(s)
      志知幸治、池田重人、岡本透、林竜馬
    • Organizer
      第126回日本森林学会大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2015-03-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 秋田県のスギ天然林における花粉分析結果からみた近世の人為的影響2015

    • Author(s)
      池田重人、志知幸治、岡本透、鳥山淳平、林竜馬
    • Organizer
      第126回日本森林学会大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2015-03-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 江戸時代以降の歴史資料にみる桃洞・佐渡のスギ原生林2015

    • Author(s)
      岡本透、池田重人、志知幸治、鳥山淳平、林竜馬
    • Organizer
      第126回日本森林学会大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2015-03-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 桑の木台湿原の花粉分析に基づく完新世後期の“鳥海ムラスギ”の変遷2015

    • Author(s)
      池田重人、志知幸治、岡本透、林竜馬
    • Organizer
      第62回日本生態学会大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2015-03-21
    • Related Report
      2014 Research-status Report
  • [Presentation] 秋田市女潟周辺における完新世中期以降のスギ林変遷2014

    • Author(s)
      志知幸治、池田重人、岡本透、林竜馬
    • Organizer
      第55回日本花粉学会大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-13
    • Related Report
      2014 Research-status Report
  • [Presentation] 花粉分析に基づく完新世における秋田県北西部のスギ林変遷2014

    • Author(s)
      志知幸治、池田重人、岡本透、林竜馬
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      さいたま市ソニックシティ
    • Related Report
      2013 Research-status Report
  • [Presentation] 北秋田市上谷地における花粉分析に基づく完新世後期の山地帯スギ林の変遷2014

    • Author(s)
      池田重人、志知幸治、岡本透、林竜馬
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      さいたま市ソニックシティ
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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