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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摘要为明确填埋场甲烷释放的时空变化规律及其影响机制,以青岛某生活垃圾填埋场为例,采用静态箱法测定了不同季节甲烷释放通量日动态变化.结果表明,填埋场甲烷释放通量季节变化显著,冬季释放最高为(115.67±65.34) mmol/(m²·h),夏季释放最低为(61.51±74.57) mmol/(m²·h).不同季节的日甲烷释放通量存在明显差异,夏季甲烷释放通量呈现双峰曲线,秋冬季甲烷释放通量呈现单峰曲线.相关性分析表明甲烷释放通量与大气压、大气温度、大气相对湿度、风速、土壤温度、土壤相对湿度显著相关;夏秋季甲烷释放通量与大气相对湿度和大气温度分别呈显著正相关和负相关,而冬季则相反.

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	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

关键词 ：甲烷释放, 生活垃圾填埋场, 气象因子, 季节变化, 日变化

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

收稿日期: 2024-09-27

PACS:

X705

基金资助:中国博士后科学基金(2022M711747);国家自然科学基金项目(52000112);山东省高等学校青年创新团队项目(2023KJ117);山东省博士后创新项目(SDCX-ZG-202203023)

作者简介: 卞荣星(1990-),男,山东临沂人,副教授,博士,研究方向为固体废物处理处置.发表论文20余篇.bianrongxing@126.com.

引用本文:

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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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2025/V45/I4/2008

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