2016 Fiscal Year Final Research Report
Elcidation of controlling factors of soil nitrite dynamics by incubation experiments under model environment
| Project/Area Number |
15H06621
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Forest science
|
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| Research Institution | Chuo University |
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Principal Investigator |
|
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| Project Period (FY) |
2015-08-28 – 2017-03-31
|
| Keywords | 森林土壌 / 亜硝酸 / 15Nトレーサー / 亜酸化窒素 / 硝化 |
|---|
| Outline of Final Research Achievements |
We incubated 3 soils that has gradient of NO2- production rate at 3 gravimetric water content (20, 32.5, 45%) to elucidate the controlling factors of NO2- transformation rates and processes. NO2- production rates changed in conjunction with NO2- consumption rates thorough the incubation period. Water content partially explained the differences in NO2- production and consumption rates. It is suggested that N2O production was regulated by NO2- oxidation (NO3- production) potential. While abiotic NO2- production was not observed, abiotic NO2- consumption was significant. N2O production from autoclaved soil accounted for 7.1-41% of one from non-autoclaved soil, indicating significant contribution of abiotic N2O production in some case.
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| Free Research Field |
農学
|
