季节性气象因子对生活垃圾填埋场甲烷释放的影响

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Abstract To clarify the temporal and spatial variation patterns of methane emissions from landfills and their influencing mechanisms, a case study was conducted at a municipal solid waste landfill in Qingdao. The static chamber method was used to measure the diurnal dynamics of methane emission fluxes across different seasons. The results indicate significant seasonal variations in methane emission fluxes from the landfill, with the highest emissions occurring in winter at (115.67±65.34) mmol/(m²·h) and the lowest in summer at (61.51±74.57) mmol/(m²·h). The diurnal methane emission fluxes also varied markedly between seasons, with summer fluxes exhibiting a bimodal curve and autumn and winter fluxes showing a unimodal curve. Correlation analysis revealed that methane emission fluxes were significantly related to atmospheric pressure, air temperature, relative humidity, wind speed, soil temperature, and soil relative humidity. In summer and autumn, methane emission fluxes showed a significant positive correlation with atmospheric relative humidity and a negative correlation with air temperature, whereas the opposite was true in winter.

Key words： methane emission meteorological factors landfills seasonal variation diurnal variation

Received: 27 September 2024

PACS:

X705

Corresponding Authors: 卞荣星,责任作者,副教授,bianrongxing@126.com E-mail: bianrongxing@126.com

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	BIAN Rong-xing
	TENG Xiao
	SUN Zhi-guo
	ZHU Run-ze
	NIU Ya-ting
	DU Xin-ran
	GAO Shu-dan
	LIU Ke-qiong
	SUN Ying-jie

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BIAN Rong-xing,TENG Xiao,SUN Zhi-guo等. The impact of seasonal meteorological factors on methane emissions from municipal solid waste landfills[J]. CHINA ENVIRONMENTAL SCIENCECE, 2025, 45(4): 2008-2015.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2025/V45/I4/2008

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