Dataset Information

Methane emissions from trees planted on a closed landfill site.

ABSTRACT: Trees have morphological adaptations that allow methane (CH₄) generated below ground to bypass oxidation in aerobic surface soils. This natural phenomenon however has not been measured in a landfill context where planted trees may alter the composition and magnitude of CH₄ fluxes from the surface. To address this research gap, we measured tree stem and soil greenhouse gas (GHG) emissions (CH₄ and CO₂) from a closed UK landfill and comparable natural site, using an off-axis integrated cavity output spectroscopy analyser and flux chambers. Analyses showed average CH₄ stem fluxes from the landfill and non-landfill sites were 31.8 ± 24.4 µg m^-2 h^-1 and -0.3 ± 0.2 µg m^-2 h^-1, respectively. The landfill site showed seasonal patterns in CH₄ and CO₂ stem emissions, but no significant patterns were observed in CH₄ and CO₂ fluxes at different stem heights or between tree species. Tree stem emissions accounted for 39% of the total CH₄ surface flux (7% of the CO₂); a previously unknown contribution that should be included in future carbon assessments.

SUBMITTER: Fraser-McDonald A

PROVIDER: S-EPMC9580030 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Methane emissions from trees planted on a closed landfill site.

Fraser-McDonald Alice A Boardman Carl C Gladding Toni T Burnley Stephen S Gauci Vincent V

Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 20220405 11

Trees have morphological adaptations that allow methane (CH4) generated below ground to bypass oxidation in aerobic surface soils. This natural phenomenon however has not been measured in a landfill context where planted trees may alter the composition and magnitude of CH4 fluxes from the surface. To address this research gap, we measured tree stem and soil greenhouse gas (GHG) emissions (CH4 and CO2) from a closed UK landfill and comparable natural si ...[more]

PMID: 35380070

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Dataset Information

Methane emissions from trees planted on a closed landfill site.

Publications

Methane emissions from trees planted on a closed landfill site.

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