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2009 Fiscal Year Final Research Report

Dissolved organic matter derived from wetlands in tropical to cool temperate regions : Evaluation of the functions and dynamics based on structural properties

Research Project

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Project/Area Number 19405021
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Plant nutrition/Soil science
Research InstitutionNagoya University

Principal Investigator

WATANABE Akira  Nagoya University, 大学院・生命農学研究科, 准教授 (50231098)

Co-Investigator(Kenkyū-buntansha) TSUTSUKI Kiyoshi  帯広畜産大学, 畜産学部, 教授 (80180024)
MAIE Nagamitsu  北里大学, 獣医学部, 講師 (00453514)
Research Collaborator RUDOLF Jaffe  フロリダ国際大学, 理学部, 教授
LULIE Melling  サラワク州府, 熱帯泥炭研究室, 室長
Project Period (FY) 2007 – 2009
Keywords溶存有機物 / 腐植物質 / 湿地 / 泥炭 / 炭素循環
Research Abstract

Structural property of dissolved organic matter (DOM) in river water derived from wetlands in tropic (Malaysia), subtropic (Florida, USA), and cool temperate (Hokkaido) regions were characterized by various spectroscopic and degradation analyses. Biodegradability of DOM was small and non-humic substances were mainly decomposed, while humic substances were very sensitive to photodegradation. There were no significant differences in the rates of biological or photochemical decomposition of DOM components among the three sites. These results indicated that the dynamics of wetland-originated DOM in various climatic regions could be estimated by same indices including the ratio of humic and non-humic substances, carbon composition, and excitation-emission matrix.

  • Research Products

    (5 results)

All 2009 2008

All Presentation (5 results)

  • [Presentation] Lulie Melling、Rudolf Jaffe:湿原水溶存有機物の糖組成と元素組成における気候帯と季節変化の影響2009

    • Author(s)
      筒木潔、吉田恵美、渡邉彰、眞家永光
    • Organizer
      日本腐植物質学会第25回講演会
    • Place of Presentation
      兵庫県立大学
    • Year and Date
      2009-11-25
  • [Presentation] 水環境中の溶存有機物の蛍光分析2009

    • Author(s)
      眞家永光
    • Organizer
      日本腐植物質学会第25回講演会
    • Place of Presentation
      兵庫県立大学
    • Year and Date
      2009-11-25
  • [Presentation] 湿地に由来する溶存有機物の化学的性質2009

    • Author(s)
      渡邊彰、眞家永光、筒木潔、諸井国郎、佐藤啓
    • Organizer
      日本土壌肥料学会2009年度京都大会
    • Place of Presentation
      京都大学
    • Year and Date
      2009-09-15
  • [Presentation] 湿原水溶存有機物の3次元蛍光スペクトル地域差と季節変動2009

    • Author(s)
      筒木潔、吉田恵美、渡邉彰、眞家永光
    • Organizer
      日本土壌肥料学会2009年度京都大会
    • Place of Presentation
      京都大学
    • Year and Date
      2009-09-15
  • [Presentation] 湿原水溶存有機物の分子サイズ分布における地域差と季節変化2008

    • Author(s)
      筒木潔、渡邉彰、眞家永光
    • Organizer
      日本土壌肥料学会2008年度愛知大会
    • Place of Presentation
      名古屋市立大学
    • Year and Date
      2008-09-09

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Published: 2011-06-18   Modified: 2016-04-21  

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