Major factors controlling nitrous oxide emission and methane uptake from forest soil

Tokyo

2001

S. 239-242

1 Abb., 5 Tab., 11 Lit. Ang.

Bandaufführung

161297

Soil samples were taken from depth of 0-12cm in virgin broad-leaved Korean pine mixed forest, in Changbai Mountain in July 2000. The effects of temperature, soil water content, pH, NH4 + and NO3 + on N2O emission and CH4 uptake of a forest soil were studied in laboratory by the method of orthogonal design. It was observed under laboratory conditions in this study that there were significant correlations between N2O emission rate, CH4 oxidation rate, soil pH and temperature. Nevertheless, N2O emission rate also showed a significant positive correlation with CH4 oxidation rate. The results suggested that pH and temperature were important factors controlling N2O emission and CH4 oxidation under this experiment conditions.