Publication - Research and analysis

Dairy Farmer-led Group: climate change evidence

Published: 20 Dec 2021

A summary of existing evidence around the dairy sector, including greenhouse gas emissions produced by Rural and Environment Science and Analytical Services (RESAS) division.

Dairy Farmer-led Group: climate change evidence
Annex B - GHG Inventory Assumptions

Annex B - GHG Inventory Assumptions

Estimates of emissions by broad sector have been derived in line with descriptions in the inventory. Not all sources are disaggregated into specific sectors therefore the following sources in the inventory have been attributed based on the following percentages.

Table B1. Emission sources attributed to sectors in the GHG inventory
IPCC Source Name Crops Dairy Deer Goats Horses Beef Pigs Sheep
3H_Urea application Fertiliser application 80% 20% 10%
1A4cii_Agriculture/Forestry/Fishing:Off-road Agriculture - mobile machinery 60% 30% 20%
3A4_Enteric_Fermentation_other_livestock Enteric 7% 1% 67% 25%
3D11_Inorganic_nitrogen_fertilizers Grass - Direct 30% 60% 10%
3D14_Crop_residues Grass - Direct 30% 60% 10%
3G1_Liming - limestone Liming 50% 15% 30% 5%
3G2_Liming - dolomite Liming 50% 15% 30% 5%

Michael MacLeod, Ilkka Leinonen and Vera Eory (2018) Biotic material flows in Scottish cattle supply chains SRUC 10/4/18

This results in the following estimates of GHG emissions for agriculture in 2018:

Table B2. GHG Emission estimates for Scottish agriculture in 2018
MtCO2e (2018)  
Direct from inventory Attributed based on expert input % Attributed
Agriculture      
Beef 2.97 0.47 16%
Crops 1.02 0.59 58%
Dairy 0.86 0.31 36%
Sheep 0.99 0.05 5%
Other livestock 0.20 - -
Uncategorised 0.02 - -

Contact

Email: are.futureruralframework@gov.scot