The Effect of Soil Moisture on Soil Carbon Dioxide Emission

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A number of factors are affecting soil’s carbon dioxide gas emission which is one of the greenhouse gases. Those factors are soil temperature, soil moisture, soil organic matter contents and soil cultivation practices. In this study, soil carbon dioxide emissions were determined by creating a soil environment with three different moisture rates in a certain volume of soil in the laboratory condition. Soil carbon dioxide emission determined using mobile PP system. Simultaneously the each carbon dioxide record, soil temperature and evaporation from soil as well as gravimetric soil moisture contents were determined. According to the results, the average soil moisture of the soil for A, B and C applications was found to be 27.5%, 22% and 19.7%, respectively. The differences between those values were found to be statistically significant (p≤ 0.01). The soil carbon dioxide emissions determined on the A, B and C applications were 0.328, 0.317 and 0.304 g m^-2 h^-1, respectively, and the difference between the applications was found to be insignificant (p 0.05). The obtained mean evaporation values for A, B and C applications were 5.78, 7.14, and 7.50 g m^-2 h^-1, respectively. The differences between them were found to be insignificant (p 0.05). Soil temperatures values were 23.06, 22.04 and 21.75 °C, respectively, for A, B and C applications. While the temperature value in A application was significantly (p≤0.01) higher than the other two, the difference between the B and C applications was not significant (p 0.05).

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Soil moisture , carbon dioxide emission , soil temperature , soil cultivation

Journal Of The Faculty Of Agriculture, Suleyman Demirel University

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Journal Of The Faculty Of Agriculture, Suleyman Demirel University