Consumption of atmospheric methane by soil in a lowland broadleaf mixed forest

Plant, Soil and Environment

Jiří Dušek¹ 

关键词: floodplain;    greenhouse gases;    climate change;    Quercus;    Fraxinus;   

DOI  :  10.17221/183/2018-PSE

学科分类：农业科学（综合）

来源: Czech Academy of Agricultural Sciences

【 摘 要 】

Soils of forest ecosystems can release or consume methane (CH ₄ ) depending on their specific hydrological regime. Our study reported the consumption of CH ₄ by soil in a lowland broadleaf mixed temperate forest in the Czech Republic (Central Europe). The motivation of our study was to determine the importance of CH ₄ fluxes in context of carbon dioxide (CO ₂ ) fluxes of a broadleaf mixed forest. CH ₄ and CO ₂ emissions from the soil were measured during the 2016 vegetation season on a long transect applying the chamber technique. The average daily consumption of atmospheric CH ₄ by the forest soil ranged from 0.83 to 1.15 mg CH ₄ -C/m ² /day. This consumption of CH ₄ during summer and autumn periods was not significantly affected by soil temperature and soil moisture. However, during spring period the consumption of CH ₄ was positively significantly affected by soil temperature and moisture. Estimated amount of carbon (CH ₄ -C) consumed by the forest soil makes up a very small part of carbon (CO ₂ -C) participated in the ecosystem carbon cycle.

【 授权许可】

CC BY