Studies on the population of methane-oxidizing bacteria and methane-oxidizing activity in Huangsong rice-field soil .
土壤中甲烷氧化菌种群数量及其与甲烷氧化活性的关系

The populations of methane oxidizing bacteria were analyzed in Huangsong soils with various plant cover, using Hungate anaerobic technique and chromatographic monitoring method The results showed that the population of methane oxidizing bacteria ranged 10 7 10 8 cfu/g dried soil with different plant cover The various plant cover on soil seemed to have no significant effect on the population of methane oxidizing bacteria, but to have noteworthy effect on the methane oxidizing activity in soil samples The variation of the population of methane oxidizing bacteria had no significant effect on methane oxidation rate in soil When pure methane was added to tested soil, which had lower activity of methane oxidation, the population of methane oxidizing bacteria and the activity of methane oxidation could be induced to increase obviously But the time needed up to the highest activity of methane oxidation was various in the tested soils with different plant cover