Osaka Kenichi

オサカケンイチ | Osaka Kenichi

Affiliation and department：
Job title： Associate Professor
Other affiliations (1)：

THE UNIVERSITY OF SHIGA PREFECTURE School of Environmental Science Department of Ecosystem Studies

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 (40)：

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

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MISC (1)：

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

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)：

Professional career (1)：

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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