| Project/Area Number |
25660149
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | National Institute for Environmental Studies |
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Principal Investigator |
MURATA Tomoyoshi 独立行政法人国立環境研究所, 地域環境研究センター, 主任研究員 (50332242)
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| Co-Investigator(Renkei-kenkyūsha) |
HIROKI Mikiya 独立行政法人国立環境研究所, 生物・生態系環境研究センター, 主任研究員 (40142103)
TOMIOKA Noriko 独立行政法人国立環境研究所, 地域環境研究センター, 主任研究員 (40168399)
FUKUSHIMA Michio 独立行政法人国立環境研究所, 生物・生態系環境研究センター, 主任研究員 (10291048)
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| Research Collaborator |
JUTAGATE Tuantong Ubon Ratchathani University, Associate Professor
UTSUGAWA Toru カテナ研究所, 所長
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 底質 / 熱帯 / ダム貯水池 / 栄養塩 / 循環 / 国際情報交換 / 底泥 / メコン川 / 物質循環 / リン / タイ / カンボジア |
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| Outline of Final Research Achievements |
The objective of this study is to clarify the following issues regarding bottom environments in dam reservoirs in Lower Mekong River Basin(LMB): 1) sedimentation process, especially of phosphorus and 2) functional evaluation of reaction states for nutrient cycles such as phosphorus.Inorg- and Org-P are correlated to clay and Fe oxide contents, probably through the adsorption of P constituents onto the surface of clay and/or Fe oxides. Especially, lakeshores of Tonle Sap had high Inorg-P, owing to human activity in riparian villages.
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