| Project/Area Number |
05452402
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
環境保全
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| Research Institution | TOHOKU UNIVERSITY |
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Principal Investigator |
MANO Akira Tohoku University FACULTY OF ENGINEERING,ASSOCIATE PROFESSOR, 工学部, 助教授 (50111258)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIKAWA Tadaharu TOKYO INSTITUTE OF TECHNOLOGY, GRADUATE SCHOOL ON SYNTHETIC SCIENCE AND ENGINEER, 総合理工学研究科, 教授 (50159696)
NOIKE Tatuya Tohoku University FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (90005398)
SUDO Ryuiti Tohoku University FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (70109916)
TANAKA Hitoshi Tohoku University FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (30171755)
GOTO Koki Tohoku University FACULTY OF ENGINEERING,ASSOCIATE PROFESSOR, 工学部, 助教授 (80134013)
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| Project Period (FY) |
1993 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1994: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1993: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | NUTRITIVE SALTS / PHOTOSYNTHESIS / DISSOLVED OXYGEN / ALGAE PROLIFERATION / SUSPENDED MATERIAL / MIXINING / 貯水池 / 藻類増殖機構 |
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| Research Abstract |
Mano and Goto executed continual observation at the Nakahara reservoir and analyzed heat budget to specify the boundary condition at the surface and to find diffusion coefficient as a function of Richardson number. Then the precise characteristics of oxygen production and consumption are obtained in terms of light, temperature and nutrition salts.
Tanaka made observation at the Shizugawa Bay to find the condition for rapid exchange of the bay water in the effects of west wind and tidal range.
Sudo has found the mechanism of Cyanobacteria domination though the cultivating mixed species as controlling factors of N/P ratio and temperature.
Noike researched the effects of pre dams on removal of suspended phosphorus through a pilot plant to confirm the effectiveness and studied liquation of phosphorus under the anaerobic situation to evaluated the flux which is the latent nutrition.
Ishikawa observed at Shitigashuku Dam to analyze mad, SS and phosphorus at floods condition and to find relationship among them.
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