Abstract

N2O emission from soil is affected by many factors. In this study, N2O flux, soil temperature, water content, NO-3 and NH+4 concentrations were simultaneously measured in winter wheat field. N2O flux, NO-3 and NH+4 concentrations were all lognormally distributed, while water content was normally distributed. The relationship between N2O flux and soil factors was also studied. N2O flux was most highly correlated with soil temperature. Regression model was developed to explain the variability of N2O emission from agricultural soil using multifactorial analysis.

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