J-GLOBAL ID:201801012945894683   Update date: May. 17, 2024

Osaka Kenichi

オサカ ケンイチ | Osaka Kenichi
Affiliation and department:
Job title: Associate Professor
Other affiliations (1):
Research field  (1): Environmental dynamics
Research keywords  (1): Forest Hydrology, Biogeochemistry
Research theme for competitive and other funds  (9):
  • 2020 - 2023 Influence of changes in lake water circulation processes due to global warming on denitrification in the sediment at Lake Biwa
  • 2018 - 2021 Relationship between nutrient loading and fisheries yield: Does water quality control cause fisheries yield to deteriorate?
  • 2017 - 2020 Re-evaluation of water purification function of the forest with high frequency measurements of water chemistry
  • 2017 - 2020 Isotopic study on interaction between nitrogen deposition, retention, export in forested watersheds.
  • 2014 - 2019 Development of underground resources in Mongolia, especially the mercury pollution assessment caused from gold mining
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Papers (42):
  • Osaka, K., Kunimatsu, T., Hida, Y., Komai, Y., Katsuyama, M., et al. Hydrological and biogeochemical controls of the seasonality of particulate and dissolved nitrogen exports during rainfall events from a forested watershed in monsoon Asia, Japan. Water Resources Research. 2023. 59
  • Masayuki Itoh, Ken'ichi Osaka, Kotaro Iizuka, Yoshiko Kosugi, Marryanna Lion, Satomi Shiodera. Assessing the changes in river water quality across a land-use change (forest to oil palm plantation) in peninsular Malaysia using the stable isotopes of water and nitrate. The Science of the total environment. 2023. 859. Pt 2. 160319-160319
  • Takashi Nakamura, Ken’ichi Osaka, Saroj Kumar Chapagain, Kei Nishida. Nitrogen Contamination and Denitrification Occurrence in Shallow Groundwater of Urbanized Area at Kathmandu Valley, Nepal. Journal of Geography (Chigaku Zasshi). 2023. 132. 2. 183-196
  • Ken'ichi Osaka, Shinsho Chishiro, Yoshiumi Matsumoto, Tomoya Iwata, Noboru Okuda. Hydrological control of the chemical characteristics of suspended particulate phosphorus in the Yasu River watershed, Japan: Implications for its source and bioavailability. Hydrological Processes. 2022. 36. 10
  • Ken'ichi Osaka, Rei Yokoyama, Takaaki Ishibashi, Naoshige Goto. Effect of dissolved oxygen on nitrogen and phosphorus fluxes from lake sediments and their thresholds based on incubation using a simple and stable dissolved oxygen control method. Limnology and Oceanography: Methods. 2022. 20. 1. 1-14
MISC (3):
  • Osaka, K., Nakamura, T., Nishida, K., Kazama, F. Improvement of analysis for nitrogen and oxygen isotopes of nitrate using denitrifier method: Challenge to reduce methodological blank. Annual report 2009,GCOE program. 2009. 29-31
  • 尾坂兼一, 大手信人, 木庭啓介, 勝山正則, 由水千景, 陀安一郎, 永田俊, WANKEL Scott, KENDALL Carol. 森林流域における脱窒の定量的評価と窒素収支に与える影響. 日本森林学会大会学術講演集(CD-ROM). 2007. 118th. P3D32-691
  • 鈴木希実, 木庭啓介, 伊藤雅之, 尾坂兼一, 大手信人, 戸張賀史, 勝山正則, 山田桂大, 永田俊. 安定同位体比を用いた森林土壌におけるメタン動態の解析. 日本生態学会大会講演要旨集. 2005. 52nd. 188
Books (2):
  • 「サンタローザ流域における共通の関心(Boundary Object)」in 流域ガバナンス
    京都大学学術出版会 2020
  • Hydrologic controls on the nitrogen dynamics of forested ecosystems investigated using water and nitrate isotope signatures, In: Earth, Life, and Isotopes
    Kyoto University Press 2010 ISBN:9784876989607
Education (2):
  • - 2007 Kyoto University Graduate School, Division of Agriculture
  • - 2002 The University of Shiga Prefecture
Professional career (1):
  • 博士(農学) (京都大学)
Work history (5):
  • 2022/04 - 現在 The University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Associate Professor
  • 2019/04 - 2022/03 The University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Lecturer
  • 2010/08 - 2019/03 The University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Assistant Professor
  • 2009/04 - 2010/07 山梨大学医学工学研究部 国際流域環境研究センター 研究員
  • 2007/04 - 2009/03 独立行政法人農業環境技術研究所 研究員
Association Membership(s) (4):
土壌肥料学会 ,  水環境学会 ,  AGU ,  陸水学会
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