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WP3 GHG emissions from livestock sector: reducing key uncertainties.
Leader: Oene Oenema (Alterra Wageningen UR)

Background and aims

There are large uncertainties in the GHG budget of livestock production, which are related to the huge spatial diversity of the livestock production systems and their management, as well as to the complexity of the factors controlling GHG emissions. This work package focusses on the currently known key uncertainties relate to

  1.  CO2-C emissions from feed producing land,
  2.  CH4 emissions from ruminants, especially under conditions with strong seasonal variations in the supply of different types of forages, and
  3. N2O emissions related to manure management, especially in the study regions Africa and Latin America.

Major Output

  •  Definition of the factors controlling the accuracy of the mean estimates of GHG emissions from livestock production chains
  • Reduced uncertainties in the relations between animal production (milk, meat, egg, etc.) and GHG emissions
    • Improved understanding of
    • net carbon sequestration in pastures and animal feed producing areas,
    • methane emissions from ruminants in climate-harsh conditions, and improve the accuracy of CH4 emissions
    • GHG emissions from manure management and the accuracy of estimates.

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