| Project/Area Number |
22KF0162
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| Project/Area Number (Other) |
22F22054 (2022)
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund (2023)
Single-year Grants (2022) |
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| Section | 外国 |
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| Review Section |
Basic Section 22060:Environmental systems for civil engineering-related
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| Research Institution | Gifu University |
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Principal Investigator |
李 富生 岐阜大学, 流域圏科学研究センター, 教授 (10332686)
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| Co-Investigator(Kenkyū-buntansha) |
BHAT SARTAJ 岐阜大学, 流域圏科学研究センター, 外国人特別研究員
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| Project Period (FY) |
2023-03-08 – 2025-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2024: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2023: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2022: ¥500,000 (Direct Cost: ¥500,000)
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| Keywords | microplastics / cow dung / Earthworms / hatchlings / composting / microbes / vermicomposting |
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| Outline of Research at the Start |
The specific content of this research is described as below:
(1) the effects of MPs (at different concentrations) on physicochemical properties of soil,
(2) the impacts of MPs (at different concentrations) on biochemical, physiological traits, and plant growth at different intervals,
(3) the bioaccumulation potential of MPs in plants, and
(4) the effect of MPs (different concentrations) on physiological, biochemical, and gut microbial community attributes of earthworms.
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| Outline of Annual Research Achievements |
This study explored the effect of non-biodegradable (low density polyethylene; LDPE) and biodegradable (polybutylene succinate-co-adipate; PBSA) microplastics on earthworm Eisenia fetida during vermicomposting of cow dung. Earthworms were exposed to different concentrations (0%, 0.5%, 1% and 2%) of LDPE and PBSA of 2 mm size. The cow dung supported the growth and hatchlings of earthworms, and the toxicity effect on Eisenia fetida was analyzed. Microplastics decreased the body weight of earthworms and there was no impact on hatchlings. Much significant changes with varying microplastics concentrations were not obvious. SEM and FTIR-ATR analysis observed the surface damage of earthworms, morphological and biochemical changes at higher concentrations of both LDPE and PBSA.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The study is going according to the plan.
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| Strategy for Future Research Activity |
The next plan for the study will be to conduct the microbial analysis of the samples and compile all the data.
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