Transportation mechanism of organic matter and trace metals from forest to coastal area for sustainable aquaculture
| Project/Area Number |
15KT0022
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Multi-year Fund |
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| Section | 特設分野 |
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| Research Field |
Food Cycle Research
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
藤井 学 東京工業大学, 環境・社会理工学院, 特任准教授 (30598503)
伊藤 紘晃 熊本大学, くまもと水循環・減災研究教育センター, 助教 (80637182)
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| Project Period (FY) |
2015-07-10 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2017: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Keywords | 有機物 / 微量必須金属 / 森から海への輸送 / 森林 / 農地 / フミン物質 / 汽水域 / 凝集沈殿 / 土壌 / 鉄 / 河川 / 海水 / 腐植物質 / 生物利用性 / 農耕地 |
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| Outline of Final Research Achievements |
Load of dissolved trace metals was dependent on land use such as forest, farmland and urban area. Especially paddy field and urban area showed a high load, indicating that human activities, as well as forest, in terrestrial area are important sources of trace metals supplied to coastal area. As organic matters playing an important role in transportation of trace metals, quantitative and qualitative changes of soil organic matters collected in forest and farmland, which can happen during the transportation due to increase of salinity, were investigated. The result demonstrates the changes were affected by species of tree and crop. In estuaries, flocculation of organic matter makes metals insolubilized. We revealed that behavior of metals there can be categorized into four types: (Fe), (Mn), (Al, V) and (Ni, Cu, Zn) and that iron becomes insolubilized most significantly in the presence of suspended solids and aggregates.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Importance of Allochthonous and Autochthonous Dissolved Organic Matter in Fe(II) Oxidation: A Case Study in Shizugawa Bay Watershed, Japan2017
Author(s)
Lee,Y. P., Fujii, M., Kikuchi, T., Natsuike, M., Ito, H., Watanabe, T., Yoshimura, C.
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Journal Title
Chemosphere
Volume: 180
Pages: 221-228
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Importance of allochthonous and autochthonous dissolved organic matter in Fe(II) oxidation: A case study in Shizugawa Bay watershed, Japan2017
Author(s)
Lee,Y. P., Fujii, M., Kikuchi, T., Natsuike, M., Ito, H., Watanabe, T., Yoshimura, C.
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Journal Title
Related Report
Peer Reviewed
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[Presentation] Manganese concentration and dissolved organic matter composition changes in surface water of mountainous streams with sabo dams2016
Author(s)
Praise, S., Ito, H., Watanabe, K., Jian, P., Watanabe, T.
Organizer
ASLO 2016 Summer Meeting
Place of Presentation
Santa Fe Community Convention Center (Santa Fe, New Mexico, USA)
Year and Date
2016-06-05
Related Report
Int'l Joint Research
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