2013 Fiscal Year Final Research Report
Elucidation of N2O emission mechanism and estimation of N2O discharge in composting process
| Project/Area Number |
23510001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Obihiro University of Agriculture and Veterinary Medicine |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MAEDA Koki 独立行政法人農業・食品産業技術総合研究機構, その他部局等, 研究員 (90435941)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 地球温暖化 / 堆肥化 / 一酸化二窒素 |
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| Research Abstract |
In the composting process, powerful greenhouse gas, N2O, is produced. In order to clarify the N2O emission mechanism and to estimation of N2O discharge, N2O emission and nitrifying-denitrifying gene abundance were investigated during composting process. N2O discharge was depended on the nitrate nitrogen and nitrite nitrogen in composting material, showing a high correlation between nitrate nitrogen or nitrite and N2O discharge during composting process. Clone library analysis showed that denitrifiers were responsible for N2O emission during high temperature (about 60˚C) stage of composting.
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