2014 Fiscal Year Final Research Report
Genesis of sediments and their functions for nutrient cycling in the tropical dam reservoir
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 |
Research Field |
Aquatic bioproduction science
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Research Institution | National Institute for Environmental Studies |
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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Keywords | 底質 / 熱帯 / ダム貯水池 / 栄養塩 / 循環 |
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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Free Research Field |
土壌学
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