Characteristics of environmental factors and their effects on CH4 and CO2 emissions from a closed landfill: An ecological case study of Shanghai

Chai Xiaoli, Lou Ziyang, Takayuki Shimaoka, Hirofumi Nakayama, Zhu Ying, Cao Xiaoyan, Teppei Komiya, Toshio Ishizaki, Zhao Youcai

研究成果: Contribution to journalArticle査読

36 被引用数 (Scopus)

抄録

To elucidate the influence of landfill gas (LFG) emission on environmental factors, an ecological investigation that was primarily concerned with the characteristics of vegetation, cover soil, and solid waste in the landfill was carried out. Temporal and spatial variations in vegetation diversity and coverage and their effects on reducing the emission of methane in the landfill were investigated. The results showed that both vegetation coverage and diversity increased with elapsed landfill closure time. The transition trend of the vegetation species was from perennial plant (Phragmites australis) to annual plants. Perennial vegetation was the dominant type of vegetation during the early closure period, and annual vegetation coverage increased with closure time. Vegetation preferentially appeared in areas of comparatively high depth of cover soil, which was characterized by high moisture retentiveness that enabled vegetation growth. The concentrations of methane and carbon dioxide in the cover soil significantly decreased with increasing closure time. The concentrations of methane and carbon dioxide from bare cover soil were higher than those from vegetated cover soil whereas the CO2 flux of bare cover soil was less than that of vegetated cover soil.

本文言語英語
ページ(範囲)446-451
ページ数6
ジャーナルWaste Management
30
3
DOI
出版ステータス出版済み - 3 1 2010

All Science Journal Classification (ASJC) codes

  • 廃棄物管理と処理

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