The impact of seasonal meteorological factors on methane emissions from municipal solid waste landfills
BIAN Rong-xing1, TENG Xiao1, SUN Zhi-guo2, ZHU Run-ze1, NIU Ya-ting1, DU Xin-ran1, GAO Shu-dan1, LIU Ke-qiong2, SUN Ying-jie1
1. College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China; 2. Qingdao Jieyuan Environment Co., Ltd., Qingdao 266300, China
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.
卞荣星, 滕晓, 孙治国, 朱润泽, 牛亚婷, 杜欣然, 高淑丹, 刘克琼, 孙英杰. 季节性气象因子对生活垃圾填埋场甲烷释放的影响[J]. 中国环境科学, 2025, 45(4): 2008-2015.
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. The impact of seasonal meteorological factors on methane emissions from municipal solid waste landfills. CHINA ENVIRONMENTAL SCIENCECE, 2025, 45(4): 2008-2015.
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