Micrometeorological mass balance technique for measuring CH4 emission from stored cattle slurry

Abstract

Methane (CH₄) emissions from stored slurry were successfully measured by a micrometeorological mass balance technique. Emissions during autumn to late winter ranged from 2 to 100kgCH₄-Cha^–1day^–1. Diurnal variations of CH₄ emissions were investigated by measuring emissions at several times during the day, correlated with slurry temperatures at 10cm depth and successfully modelled with the Arrhenius equation.