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Production of NO and N2O by soil nitrifying bacteria (1981)

Zafiriou, O. C. ; Lipschultz, F. ; Wofsy, S. C. ; [et al.]

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Publication Date: 2019-06-28

Description: The composition of the atmosphere is influenced both directly and indirectly by biological activity. Evidence is presented here to suggest that nitrification in soil is a potentially significant source of both NO and N2O. Between 0.3 and 10% of the ammonium oxidized by cultures of the soil bacterium Nitrosomonas europaea is converted to these gases. The global source for NO associated with nitrification could be as large as 15,000,000 tonnes N/yr, with a source for N2O of 5,000,000-10,000,000 tonnes N/yr. Nitric oxide has a key role in tropospheric chemistry, participating in a complex set of reactions regulating OH and O3. Nitrous oxide is a dominant source of stratospheric NO and has a significant influence on climate.

Keywords: GEOPHYSICS

Type: Nature; 294; Dec. 17

Format: text

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