| Project/Area Number |
14580573
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
環境影響評価(含放射線生物学)
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| Research Institution | Showa University |
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Principal Investigator |
HASEGAWA Makiko Showa University, College of Arts and Science, Associate Professor, 教養部, 助教授 (80146810)
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| Co-Investigator(Kenkyū-buntansha) |
ITOH Ryosaku Showa University, College of Arts and Science, Professor, 教養部, 教授 (80133354)
KANEKO Nobuhiro Yokohama National University, Graduate School of Environmento and Information Sciences, Professor, 大学院環境情報研究部, 教授 (30183271)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2002: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | soil pollution / soil animals / collembola / bio-indicator / copper / 生態毒性 / 生態リスク / 環境指標 |
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| Research Abstract |
1) We examined the distribution of the contaminant in the body using analysis electron microscope. Material is Folsomia candida living in copper contaminated soil. Copper was detected from the small intestinal wall and the outside of the body.
2) We investigated the community structure of soil mites, especially oribatid mites at Watarase Reservor, central Japan, where copper contaminated site and clean site stand close each other. Due to low bioavailable Cu in the polluted soil, the oribatid mite community was not different, however total species richness was higher in the clean site.
3) Collembolan fauna was investigated at the Watarase retarding basin having copper contaminated soil. Comparing the results obtained from polluted and unpolluted sites, it was showed that collembolan diversity in polluted soil was lower than in unpolluted soil.
4) We quantified macrofauna and mesofauna (springtails and mites) in oil polluted soil in order to evaluate the effect of bioremediation such as aeration and compost application to the soil. We also conducted toxicity test with springtail (Folsomia candida (Willem)) and bacterial community analysis using BiOLOG Eco Plate. These studies have shown that the number of mesofauna is much more sensitive to oil pollution and remediation, and a battery of these studies showed that the recovery of soil ecosystem is more advanced in the aerated soil than the composted soil.
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