| Project/Area Number |
19380139
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Kyushu University |
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Principal Investigator |
OHTSUBO Masami Kyushu University, 大学院・農学研究院, 教授 (80112316)
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| Co-Investigator(Kenkyū-buntansha) |
HIGASHI Takahiro 九州大学, 大学院・農学研究院, 准教授 (00181066)
KANAYAMA Motohei 九州大学, 大学院・農学研究院, 助教 (60398104)
CHIKUSHI Jiro 九州大学, 大学院・農学研究院, 教授 (00127458)
HIRAMATSU Kazuaki 九州大学, 大学院・農学研究院, 教授 (10199094)
HIYAMA Hiroki 鹿児島大学, 農学部, 准教授 (10208788)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2009: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2008: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2007: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Keywords | 有明海 / 底泥 / 重金属 / 吸着 / 土質 / 物理的性質 / 粘土鉱物 / 有機物 / 炭酸塩 |
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| Research Abstract |
We examined the heavy metal concentrations, physical and chemical properties of sediment mud in Ariake Bay and inflowing rivers, and also conducted batch tests on heavy metal sorption on the mud samples. Based on the data obtained, the factors that affect heavy metal retention for the mud were assessed. The heavy metal concentration in Ariake Bay mud was in the range of 0.04-1.02 mg/kg for Cd, 3.6-24.1 mg/kg for Pb, 10.2-63.0 mg/kg for Cu, and 31-157 mg/kg for Zn. A significant correlation was observed between the heavy metal concentrations and organic carbon in the Ariake Bay mud, which indicates that organic matter in the sediment mud is an important factor for heavy metal retention.
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