2013 Fiscal Year Final Research Report
| Project/Area Number |
23241016
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | Shizuoka University |
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Principal Investigator |
KATO Kenji 静岡大学, 理学(系)研究科(研究院), 教授 (70169499)
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| Co-Investigator(Kenkyū-buntansha) |
SUWA Yuichi 中央大学, 理工学部, 教授 (90154632)
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| Co-Investigator(Renkei-kenkyūsha) |
TSUJIMURA Maki 筑波大学, 生命環境科学研究科, 教授 (10273301)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 陸圏・水圏・大気圏影響評価 / 地下水硝酸汚染 |
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| Research Abstract |
Adequate management of groundwater is strongly required against increasing threat of water shortage. Nitrate contamination is remained problems for groundwater. To minimize nitrate contamination we surveyed nitrate concentration and estimated in situ denitrification activity of groundwater by stable isotope tracer experiment. And we revealed corresponding microbial populations using gene analysis with qPCR targeting denitrification functional genes. Constraints of denitrification are also elucidated. Acetate showed the highest concentration among the measured organic compounds dissolved in the groundwater. And when the groundwater was incubated with 15NO3- by adding acetate debitirification activity increased about twice compared with the incubation under the in situ condition. And soil microbes around the wells enhanced denitrification about three times. Basic understandings were thus obtained to construct in situ highly active denitrification system for the groundwater.
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[Journal Article] Occurrence and potential activity of denitrifiers and methanogens in groundwater at 140 m depth in Pliocene diatomaceous mudstone of northen Japan2013
Author(s)
Chie Katsuyama, Hiroaki Nashimoto, Kazuyo Nagaosa, Tomotaka Ishibashi, Kazuki Furuta, Takeshi Kino shita, Hideki Yoshikawa, Kazuhiro Aoki, Takahiro Asano, Yoshito Sasaki, Rumi Sohrin, Daisuke D. Komatsu, Urumu Tsunogai, Hiroyuki Kimura, Yuichi Suwa, Kenii Kato
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Journal Title
FEMS Microbiology Ecology
Volume: 86
Pages: 532-543
DOI
Peer Reviewed
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[Presentation] Methanogenesis in deep warm groundwater2012
Author(s)
Kenji Kato, Kazuyo Nagaosa, Urumu Tsunoghai, Hiroaki Nashimoto, Hideki Yoshikawa, Yoshito Sasaki, Takahiro Asano, Kazuhiro Aoki
Organizer
14th International Symposium on Microbial Ecology
Place of Presentation
Bella Center Coopenhagen, Denmark
Year and Date
20120819-24
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