Dynamics of dissolved organic matter in the forest soil-stream system

• Project/Area Number: 21380096
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Forest science
• Research Institution: Kyoto University
• Principal Investigator: YOSHIOKA Takahito 京都大学, フィールド科学教育研究センター, 教授 (50202396)
• Co-Investigator(Kenkyū-buntansha): TOKUCHI Naoko 京都大学, フィールド科学教育研究センター, 教授 (60237071)
• Project Period (FY): 2009 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
• Keywords: 生物地球化学 / 物質循環 / 溶存有機物 / 蛍光特性 / 森林土壌 / 水質 / 森林流域生態系 / 渓流 / 溶存有機体炭素 / 三次元蛍光 / 腐植物質 / 錯体 / 溶存鉄 / 溶存有機態炭素

Research Abstract

Dynamics of dissolved organic matter (DOM) in the forest soil-stream systemand also in the watershed has been investigated with special reference to its quantity (dissolved organiccarbon content) and fluorescence property. Humic substance, which is a main component of dissolvedorganic matter, showed several fluorescent peaks. Peak intensities can be used to qualitatively andquantitatively analyze the DOM dynamics. From soil incubation experiments, it was indicated thatDOM and nitrogenous nutrient dynamics in soil closely relate each other, to be reflected in the streamwater quality.

Research Products

• [Journal Article] 芦生研究林におけるシカ排除柵によるススキ群落の回復過程 (2012)
  • Author(s): 石原正恵・今西亜友美・阪口翔太・福澤加里部・向昌宏・吉岡崇仁
  • Journal Title: 森林研究 Volume: 78 Pages: 39-57
  • NAID: 120005537661
  • Peer Reviewed
• [Journal Article] Contributionof atmospheric nitrate to stream water nitratein Japanese coniferous forests revealed by theoxygen isotope ratio of nitrate. (2010)
  • Author(s): Tobari, Y., K. Koba, K. Fukushima, N.Tokuchi, N. Ohte, R. Tateno, S. Toyoda, T.Yoshioka and N. Yoshida.
  • Journal Title: RapidCommunications in Mass Spectrometry Volume: 24 Pages: 1281-1286
  • Peer Reviewed
• [Journal Article] モニタリングサイト1000 森林・草原調査コアサイト・準コアサイトの毎木調査データの概要 (2010)
  • Author(s): 石原正恵・吉岡崇仁ほか
  • Journal Title: 日本生態学会誌 Volume: 60 Pages: 111-123
  • Peer Reviewed
• [Journal Article] 琵琶湖およびバイカル湖とその集水域における溶存有機物の動態 (2010)
  • Author(s): 吉岡崇仁・Mostofa, K. M. G
  • Journal Title: 日本腐植物質学会誌 Volume: 7 Pages: 5-14
  • Peer Reviewed
• [Journal Article] Applications of a hydro-biogeochemicalmodel and long-term simulations of theeffects of logging in forested watersheds. (2009)
  • Author(s): Katsuyama, M., Shibata, H., Yoshioka, T.,Yoshida, T., Ogawa, A. and Ohte, N.
  • Journal Title: Sustainability Science Volume: 4 Issue: 2 Pages: 179-188
  • DOI: 10.1007/s11625-009-0079-z
  • Peer Reviewed
• [Presentation] Soil carbon and nitrogen dynamics changes associated with vegetation recovery in a deer exclosure at a heavy grazed Miscanthus sinensis grassland (2012)
  • Author(s): K.Ishii, K.Fukushima, M.Ishihara, Yoshioka T.
  • Organizer: 第59回日本生態学会・第5回東アジア生態学会連合大会
  • Place of Presentation: 龍谷大学理工学部(滋賀県)
  • Year and Date: 2012-03-19
• [Presentation] Characterization of fluorescent dissolvedy organic matter exuded from red tide algae. (2012)
  • Author(s): K. Fukuzaki, T. Yoshioka and I. Imai.
  • Organizer: 2012 ASLO Aquatic Sciences Meeting
  • Place of Presentation: Otsu
• [Presentation] Spatial pattern and its controlling factors ofthe nitrate concentration in river water in theYura River basin, Japan. (2012)
  • Author(s): K. Fukushima, S. Suzuki, K. Fukuzaki, M.Ueno, N. Tokuchi and T. Yoshioka.
  • Organizer: 2012 ASLO AquaticSciences Meeting
  • Place of Presentation: Otsu
• [Presentation] Soil carbon and nitrogendynamics changes associated with vegetationrecovery in a deer exclosure at a heavy grazedMiscanthus sinensis grassland (2012)
  • Author(s): K. Ishii, K. Fukushima, M. Ishihara and T.Yoshioka
  • Organizer: the 59th annual meeting of EcologicalSociety of Japan (ESJ) and the 5th annualmeeting of East Asian Federation ofEcological Societies (EAFES)
  • Place of Presentation: Otsu, Japan
• [Presentation] 由良川流域における溶存有機物の蛍光特性 (2012)
  • Author(s): 大槻あずさ・福崎康司・鈴木伸弥・福島慶太郎・吉岡崇仁
  • Organizer: 日本陸水学会第77回大会
  • Place of Presentation: 名古屋市
• [Presentation] Assessing spatial and seasonal variations of dissolved organic matter by spectroscopic analysis in a stratified estuary : Yura River Estuary, Japan (2011)
  • Author(s): K.Fukuzaki, T.Yoshioka, et al
  • Organizer: American Geophysical Union Fall Meeting 2011
  • Place of Presentation: サンフランシスコ(アメリカ合衆国)
  • Year and Date: 2011-12-05
• [Presentation] Nitrogen Export from Headwater Catchments : Integrating Biogeochemical Processing with Hydrologic Transport (2011)
  • Author(s): K.Fukushima, T.Yoshioka, et al
  • Organizer: American Geophysical Union Fall Meeting 2011
  • Place of Presentation: サンフランシスコ(アメリカ合衆国)
  • Year and Date: 2011-12-05
• [Presentation] Nitrogen Export from HeadwaterCatchments: Integrating BiogeochemicalProcessing with Hydrologic Transport (2011)
  • Author(s): K. Fukushima, M. Sakai, S. Sakaguchi, Y.Iwai, A. Hasegawa, Y. Nishioka, H. Fujii, N.Tokuchi, T. Yoshioka and A. Takayanagi
  • Organizer: American Geophysical Union Fall Meeting2011
  • Place of Presentation: San Francisco, USA
• [Presentation] Assessing spatial and seasonalvariations of dissolved organic matter byspectroscopic analysis in a stratified estuary:Yura River Estuary, Japan (2011)
  • Author(s): K. Fukuzaki, K. Watanabe, K. Fukushima, S.Akiyama, T. Fuji, T. Funahashi, H. Shirasawa,M. Ueno, Y. Yamashita and T. Yoshioka.
  • Organizer: AmericanGeophysical Union Fall Meeting 2011
  • Place of Presentation: SanFrancisco, USA
• [Presentation] Spatialdistribution of oxygen-18 and deuterium instream- and groundwaters across the Japanesearchipelago (2011)
  • Author(s): M. Katsuyama, T. Yoshioka, E. Konohira, I.Tayasu and M. Tani.
  • Organizer: AmericanGeophysical Union Fall Meeting 2011
  • Place of Presentation: SanFrancisco, USA
• [Presentation] 硝酸の酸素と窒素同位体比を用いた由良川流域における窒素供給源の評価 (2011)
  • Author(s): 鈴木伸弥・吉岡崇仁・福島慶太郎・福崎康司・白澤紘明・大槻あずさ
  • Organizer: 日本生態学会第59回全国大会
  • Place of Presentation: 大津市
• [Presentation] 由良川流域における溶存鉄の分布と動態 (2010)
  • Author(s): 福崎康司・河本晴恵・大槻あずさ・吉岡崇仁・徳地直子・福島慶太郎・向昌宏・堤直人・相本道宏
  • Organizer: 日本陸水学会第75回大会
  • Place of Presentation: 弘前大学総合教育棟 青森県弘前市
  • Year and Date: 2010-09-18
• [Presentation] 由良川流下過程に伴う溶存有機物および溶存鉄の濃度変化 (2010)
  • Author(s): 福島慶太郎・大槻あずさ・河本晴恵・吉岡崇仁・徳地直子・谷尾陽一・向昌宏
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場 千葉県千葉市
  • Year and Date: 2010-05-26
• [Presentation] 由良川流域における溶存物質の動態について-森里海連環学ことはじめ- (2010)
  • Author(s): 吉岡崇仁・徳地直子・福島慶太郎・今西亜友美・向昌宏・大槻あずさ・河本晴恵・谷尾陽一
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場 千葉県千葉市
  • Year and Date: 2010-05-26
• [Presentation] 二つの森林流域における渓流内での栄養塩の取り込み (2009)
  • Author(s): 谷尾陽一
  • Organizer: 日本陸水学会第74回大会
  • Place of Presentation: 大分大学教育福祉科学部
  • Year and Date: 2009-09-16
• [Presentation] 海洋植物プランクトンの産生する溶存有機物の光学的特性
  • Author(s): 福崎康司・吉岡崇仁・今井一郎
  • Organizer: 日本腐植物質学会第27回講演会
  • Place of Presentation: 金沢
• [Presentation] Spatial pattern and its controlling factors of the nitrate concentration in river water in the Yura River basin, Japan
  • Author(s): K. Fukushima
  • Organizer: ASLO Aquatic Sciences Meeting
  • Place of Presentation: Otsu, Shiga, Japan
• [Presentation] 由良川流域における溶存有機物の蛍光特性
  • Author(s): 大槻あずさ
  • Organizer: 日本陸水学会第77回大会
  • Place of Presentation: 名古屋大学、名古屋
• [Presentation] 由良川流域における土地利用形態が水質に与える影響：鉄と硝酸態窒素からの考察
  • Author(s): 日高 渉
  • Organizer: 日本森林学会第124回大会
  • Place of Presentation: 岩手大学、盛岡
• [Book] Photobiogeochemistry of Organic Matter:Principles and practices in waterenvironments. Springer-Verlag (2013)
  • Author(s): K. M. G. Mostofa, T. Yoshioka, M. A.Mottaleb and D. Vione eds.
  • Publisher: BerlinHeidelberg
• [Book] 「3-3. 琵琶湖集水域」、『森と海をむすぶ川』 フィールド科学教育研究センター編、向井宏監修 (2012)
  • Author(s): 吉岡崇仁
  • Publisher: 京都大学学術出版会
• [Book] Dissolvedorganic matter in the aquatic environment. InNatural Organic Matter and Its Significancein the Environment. F. Wu and B. Xing eds. (2009)
  • Author(s): Mostofa, K. M. G., F. Wu, T. Yoshioka, H.Sakugawa and E. Tanoue.
  • Publisher: Science Press, Beijing, P. R. China
• [Remarks]
  • URL: http://fserc.kyoto-u.ac.jp/proshien/kibunka/sub3.html