TY - GEN
T1 - Emissions of greenhouse gases (methane and nitrous oxide) from cattle slurry storage in Northern Europe
AU - Rodhe, Lena
AU - Ascue, Johnny
AU - Nordberg, Åke
PY - 2009
Y1 - 2009
N2 - Total greenhouse gas (GHG) emissions from stored manure corresponded to 14% of overall GHG emissions from Swedish agriculture in 2006 according to calculations using standard values for a cool climate. The present study identified storage conditions for cattle slurry in different regions of Sweden, developed methodology for measuring GHGs from slurry stored under similar conditions to full-scale storage, and determined annual GHG emissions (methane and nitrous oxide) from stored cattle slurry under Swedish conditions. Temperature measurements in full-scale storage of cattle slurry on farms showed a mean annual slurry temperature of 9.7 degrees C in south-west Sweden and 5.6 degrees C in the north. The closed chamber methodology and equipment developed for measuring GHG emissions were implemented for one year in a pilot-scale plant with similar conditions to full-scale storage as regards slurry temperature, climate and filling/emptying routines. During winter (Oct-April), methane emissions from stored cattle slurry were 3.6 g CH(4)-C per kg VS, while during summer (May-Sept) they were 6.5 g CH(4)-C per kg VS. This corresponded to an annual methane conversion factor (MCF) of 2.7%. Losses of nitrous oxide were close to zero.
AB - Total greenhouse gas (GHG) emissions from stored manure corresponded to 14% of overall GHG emissions from Swedish agriculture in 2006 according to calculations using standard values for a cool climate. The present study identified storage conditions for cattle slurry in different regions of Sweden, developed methodology for measuring GHGs from slurry stored under similar conditions to full-scale storage, and determined annual GHG emissions (methane and nitrous oxide) from stored cattle slurry under Swedish conditions. Temperature measurements in full-scale storage of cattle slurry on farms showed a mean annual slurry temperature of 9.7 degrees C in south-west Sweden and 5.6 degrees C in the north. The closed chamber methodology and equipment developed for measuring GHG emissions were implemented for one year in a pilot-scale plant with similar conditions to full-scale storage as regards slurry temperature, climate and filling/emptying routines. During winter (Oct-April), methane emissions from stored cattle slurry were 3.6 g CH(4)-C per kg VS, while during summer (May-Sept) they were 6.5 g CH(4)-C per kg VS. This corresponded to an annual methane conversion factor (MCF) of 2.7%. Losses of nitrous oxide were close to zero.
UR - https://res.slu.se/id/publ/86830
U2 - 10.1088/1755-1315/8/1/012019
DO - 10.1088/1755-1315/8/1/012019
M3 - Conference paper in proceedings
T3 - IOP Conference Series: Earth and Environmental Science
BT - Beyond Kyoto: Addressing the Challenges of Climate Change Science Meets Industry, Policy and Public 5–7 March 2009, Aarhus, Denmark
PB - IOP Publishing
ER -