Solar radiation drives methane emissions from the shoots of Scots pine.

ABSTRACT: Plants are recognized as sources of aerobically produced methane (CH₄ ), but the seasonality, environmental drivers and significance of CH₄ emissions from the canopies of evergreen boreal trees remain poorly understood. We measured the CH₄ fluxes from the shoots of Pinus sylvestris (Scots pine) and Picea abies (Norway spruce) saplings in a static, non-steady-state chamber setup to investigate if the shoots of boreal conifers are a source of CH₄ during spring. We found that the shoots of Scots pine emitted CH₄ and these emissions correlated with the photosynthetically active radiation. For Norway spruce, the evidence for CH₄ emissions from the shoots was inconclusive. Our study shows that the canopies of evergreen boreal tree

SUBMITTER: Tenhovirta SAM 

PROVIDER: S-EPMC9325065 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature