富铁炭对填埋覆土层甲烷氧化主导微生物活动的影响

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Abstract To further clarify the relationship between methanotrophs and its environment in landfill cover soils, the impact of environmental differences caused by different substrate concentrations and biochar groups on microorganisms were investigated by comparing the two important microbial activities, including methane oxidation and EPS generation. Substrate concentrations had the greatest impact on microbial diversity and population differences. With sufficient carbon source and oxygen, the amount of methane oxidation was mainly contributed by type I methanotrophs; otherwise, type Ⅱ methanotrophs dominated. Under high methane and low oxygen conditions, adding iron-rich biochar may effectively alleviate EPS blockage and facilitate the growth of Methylocystis.

Key words： iron-rich biochar landfill cover soil methanotroph adaptive response EPS

Received: 29 June 2021

PACS:

X705

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	Articles by authors
	BAI Xin-yue
	CHEN Yu-ke
	HUANG Dan-dan
	XU Qi-yong

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BAI Xin-yue,CHEN Yu-ke,HUANG Dan-dan等. The effect of iron-rich biochar on microorganisms dominated by methanotrophs in landfill cover[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(2): 787-793.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I2/787

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