Quantification and evaluation of material dynamics in lakes and their watersheds using tracers on time scales, sources and processes
Project/Area Number |
21241001
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Environmental dynamic analysis
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Research Institution | University of Tsukuba |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
ONDA Yuichi 筑波大学, 生命環境系, 教授 (00221862)
TSUJIMURA Maki 筑波大学, 生命環境系, 教授 (10273301)
MARUOKA Teruyuki 筑波大学, 生命環境系, 准教授 (80400646)
|
Project Period (FY) |
2009 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
Keywords | トレーサー / 湖沼・流域 / 物質循環 / 時間軸 / 起源・過程 / 湖沼 / 流域 |
Research Abstract |
Methods for quantifying and evaluating the material dynamics in lakes and their watersheds were developed using the vertical distributions of materials and isotopes, the contents of particulate matter in inflowing rivers during rainfall periods, the isotopes in surface and groundwater as the tracers on time scales, sources, and processes. The regime shifts in water quality and ecosystems were detected in Lake Kasumigaura and then their causes were discussed.
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Report
(5 results)
Research Products
(96 results)
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[Journal Article] Tritium in Japanese precipitation following the March 2011 Fukushima Daiichi Nuclear Plant accident.2013
Author(s)
T. Mstumoto, T. Maruoka, G. Shimoda, H. Obata, H. Kagi, K. Suzuki, K. Yamamoto, T. Mitsuguchi, K. Hagino, N. Tomioka, D. Brummer, P. M. Klaus and P. Aggarwal
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Journal Title
Sci. Tot. Environ
Volume: 445-446
Pages: 365-370
DOI
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Peer Reviewed
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[Journal Article] Fallout radionuclide-based techniques for assessing the impact of soil conservation measures on erosion control and soil quality : an overview of the main lessons learnt under an FAO/IAEA Coordinated Research Project2012
Author(s)
G.Dercon, L.Mabit, G.Hancock, M.L.Nguyen, P.Dornhofer, O.O.S.Bacchi, M.Benmansour, C.Bernard, W.Froehlich, V.N.Golosov, S.Haciyakupoglu, P.S.Hai, A.Klik, Y.Li, D.A.Lobb, Y.Onda, N.Popam, M.Rafiq, J.C.Ritchie, P.Schuller, A.Shakhashiro, P.Wallbrink, D.E.Walling, F.Zapata, X.Zhang
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Journal Title
J.Environmental Radioactivity
Volume: 107
Pages: 78-85
Related Report
Peer Reviewed
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[Journal Article] Osmium evidence for synchronicity between a rise in atmospheric oxygen and Palaeoproterozoic deglaciation2011
Author(s)
Sekine, Y., Suzuki, K., Senda, R., Tajika, E., Tada, R., Goto, K., Yamamoto, S., Ohkouchi, N., and Ogawa, N.O
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Journal Title
Nature Communications 2
Volume: 502
Issue: 1
Pages: 502-502
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Direct evidence for the alternation of 13C natural abundances during early diagenesis in Lake Kasumigaura2011
Author(s)
A. Kohzu, A. Imai, N. Ohkouchi, T. Fukushima, K. Kamiya, K. Komatsu, N. Tomioka, N. Kawasaki, S. Miura, and T. Satou
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Journal Title
Japan. Geochemistry Geophysics Geosystems
Volume: 12,10
Issue: 10
Pages: 1-14
DOI
Related Report
Peer Reviewed
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[Journal Article] Evaluation of storm runoff pathways in steep nested catchments draining a Japanese cypress forest in central Japan : a hydrometric, geochemical, and isotopic approaches.2010
Author(s)
Gomi, T., Asano, Y., Uchida, T., Onda, Y.Sidle, R.C., Miyata, S., Kosugi, K., Mizugaki, S., Fukuyama, T., Fukushima, T.
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Journal Title
Hydrological Processes 24
Pages: 550-566
Related Report
Peer Reviewed
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[Journal Article]2010
Author(s)
Onda, Y., Fukuyama, T., Takenaka, C., Hamajima, Y.
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Journal Title
Low-level Measurement on Radionuclides and Its Application to Earth and Environmetal Sciences(K-INET, Kanazawa)
Related Report
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[Journal Article]2010
Author(s)
Fukuyama, T., Inoue, M., Yamamoto, M., Onda, Y., Nakashima, T.
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Journal Title
Low-level Measurement on Radionuclides and Its Application to Earth and Environmetal Sciences(K-INET, Kanazawa)
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[Book] IAEA TECDOC 1665, 61-722011
Author(s)
Onda, Y., Mizugaki, S., Kato, H.
Total Pages
329
Publisher
Assessment of the contribution from surface erosion of forest floors to suspended sediment in mountainous forested catchments in the Tsuzura watershed, southern Japan
Related Report
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