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2010 Fiscal Year Self-evaluation Report

Complete understanding of the nitrogen missing link in boreal forest ecosystems and evaluation of nitrogen provision and loss

Research Project

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Project/Area Number 20255002
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Environmental dynamic analysis
Research InstitutionHokkaido University

Principal Investigator

HASHIDOKO Yasuyuki  Hokkaido University, 大学院・農学研究院, 教授 (40281795)

Project Period (FY) 2008 – 2011
Keywords高緯度森林限界 / Spodosol / 低温耐性土壌細菌 / フェザーモス / コンソーシアム形成 / カンパ林 / シアノバクテリア共生 / VBNC
Research Abstract

本研究は、北方針葉樹林ならびに北方湿地林の窒素供給源の謎を解明し、北方林生態系におけるバイオマス維持に必要な窒素循環システムの全容解明を目的とする。この窒素供給要因を完全に理解するため、タイプの異なる北方林生態系を研究サイトとして選定し、これを地球の肺と目されている北方林の管理・再生技術確立のために活用する。そのため、成立過程に関する基礎データを東シベリア(永久凍土タイガ林、乾燥地)に求めてきたが,この2年間はサンプルの持ち出しが許可されない状況が続いているため、フィンランド(トウヒ・アカマツ林、多湿地域)とフィンランドラップランドの高緯度森林限界、またその比較として北海道(カラマツ林とハンノキ林、苫小牧・釧路湿原)で土壌や植性を反映する腐植層などの収集・解析を行う。この研究により、北方林の維持と再生に必要な要因を明らかにし,特に皆伐や森林火災で破壊された森林生態系の修復を含めて,生態系管理技術への提言を目指す。

  • Research Products

    (11 results)

All 2011 2010 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) Book (1 results)

  • [Journal Article] The growth of Larix gmelinii seedlings as affected by charcoal produced at two different temperatures.2011

    • Author(s)
      K.Makoto, D.Choi, Y.Hashidoko, T.Koike.
    • Journal Title

      Biology and Fertility of Soils online published

    • Peer Reviewed
  • [Journal Article] Clear increase of acetylene reduction in soil bacteria of East Siberian Taiga forest bed under appropriate conditions mimicking the natural soil environments.2010

    • Author(s)
      S.Hara, R.V.Desyatkin, T.Morishita, R.Hatano, Y.Hashidoko.
    • Journal Title

      Soil Science and Plant Nutrition 57(5)

      Pages: 716-724

    • Peer Reviewed
  • [Journal Article] High rate of N_2-fixation by East Siberian cryophilic soil bacteria determined by measuring acetylene reduction in nitrogen-poor medium solidified with gellan gum.2009

    • Author(s)
      S.Hara, Y.Hashidoko, R.V.Desyatkin, R.Hatano, S.Tahara.
    • Journal Title

      Applied and Environmental Microbiology 75(9)

      Pages: 2811-2819

    • Peer Reviewed
  • [Journal Article] CH_4 emission from different stages of thermokarst formation in Central Yakutia2009

    • Author(s)
      A.R.Desyatkin, F.Takakai, P.P.Fedorov, R.Hatano.
    • Journal Title

      East Siberia. Soil Science and Plant Nutrition 55

      Pages: 558-570

    • Peer Reviewed
  • [Journal Article] Deep supercooling xylem parenchyma cells of katsura tree (Cercidiphyllum japonicum) contain flavonol glycosides exhibiting high anti-ice nucleation activity.2008

    • Author(s)
      J.Kasuga, Y.Hashidoko, A.Nishioka, M.Yoshiba, K.Arakawa, S.Fulikawa.
    • Journal Title

      Plant and Cell Environment 31

      Pages: 1335-1348

    • Peer Reviewed
  • [Presentation] Investigation of nitrogen-fixing potential in soil bacterial microbiota from Lapland boreal forest limit.2010

    • Author(s)
      S.Hara, T.Tahvanainen, Y.Hashidoko
    • Organizer
      19th The World Congress of Soil Science.
    • Place of Presentation
      Brisbane Convention and Exhibition Centre, Brisbane, Australia (Poster).
    • Year and Date
      20100804-20100808
  • [Presentation] Plant defense characteristics of alder species native to northern Japan grown at elevated CO_2 in FACE.2010

    • Author(s)
      T.Koike, H.Tobita, T.Agari, M.Kitao, N.Watanabe, K.Makoto, K.Sass, Y.Hashidoko
    • Organizer
      4th International Conference on "Mechanisms of Growth, Competition and Stress Defense in Plants"
    • Place of Presentation
      Freising-Weihenstephan, Germany
    • Year and Date
      20100301-20100303
  • [Presentation] 低炭素培地を用いた北方針葉樹林林床土壌微生物のアセチレン還元評価2010

    • Author(s)
      原新太郎, 橋床泰之
    • Organizer
      日本土壌肥料学会大会(口頭発表6-4)
    • Place of Presentation
      札幌,北大農学部
    • Year and Date
      2010-09-07
  • [Presentation] Mimicking soil environment is important in acetylene reduction by free-living nitrogen fixing, soil bacteria -a case study of East Siberian forest bed soil-.2009

    • Author(s)
      S.Hara, Y.Hashidoko, R.V.Desyatkin, R.Hatano
    • Organizer
      The 9th International Conference of The East and Southeast Asia Federation of Soil Science Societies (ESAFS9)
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2009-10-27
  • [Presentation] 東シベリア永久凍土上の活動層から分離した土壌窒素固定細菌の特性2009

    • Author(s)
      原新太郎, 橋床泰之, R.V.Desyatokin, 波多野隆介
    • Organizer
      日本土壌肥料学会大会
    • Place of Presentation
      (京都大)口頭発表
    • Year and Date
      2009-09-18
  • [Book] 生態学入門 生態系を理解する(共生系による生態系の安定化))(原口昭(編著))2010

    • Author(s)
      橋床泰之
    • Total Pages
      37-43

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Published: 2012-02-13   Modified: 2016-04-21  

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