This presentation was given by Dr. Barbara Amon at the kick-off meeting on "Piloting and scaling of low emission development options in large scale dairy farms in China" on September 28, 2020.

1. Reduction of GHG and nitrogen
emissions from dairy production
systems
“Piloting and scaling of low emission development options
in large-scale dairy farms in China”
Kick-Off Meeting
28th September 2020
Prof. UZ Dr. Barbara Amon

2. MEASURING EMISSIONS

3. Measurement of emissions during manure storage
with a large open dynamic chamber
continuous
measurement of gas
concentrations
via FTIR

4. Measurement of emissions after manure
application with closed chambers
open dynamic chamber: NH3
closed chamber: N2O and CH4

5. Naturally ventilated barn

6. Methodologies for the assessment of trace
gas dispersion
Systematic experiments to quantify
aerodynamic environmental processes in a
boundary layer wind tunnel
Assessment of emission and immission
processes
Simulation of:
Topography: environment, buildings, cultivation
Meteorology: incoming flow, wind, turbulences,
temperature, relative humidity, etc.
Technology: livestock buildings, ventilation
systems, etc.

7. Validation
Boundary layer On farm
numeric
simulation

8. MELS – Mitigating Greenhouse
Gas Emissions from Livestock
Funded by

9. Consortium
and Advisory Board
9

10. Workplan
10
WP 2
DATA COLLATION &
MANAGEMENT
[D2.1-2]
WP 3
COMPONENT
MODELING
WP1 ADMINISTRATION and COORDINATION
WP 4
FARM-SCALE
GHG DSS
WP 5 IMPROVING NATIONAL INVENTORIES & PROJECTIONS
WP 6 CONSULTATION & DISSEMINATION
Stakeholders
Stakeholders
[D3.1-3]
[D4.1,
D4.3,
D4.5]
[D4.2-3][D3.1]
[D3.1]
[D6.1-2]
[D4.4]
[D5.1-4]
[D5.2]
[D6.3]
[D3.2-3]
[D2.3]
Extended
database
DATAMAN
release
Functional
relationships
Integration
in national
inventories
Assessmentof
mitigationcosts
andbenefits
GHGDSS
prototype
[D4.5]
Emission
factors
Stakeholder
consultation
On DSSs

11. MilKey:
Decision support system for
sustainable and GHG optimised milk
production in key European areas

12. 12
Consortium
and Advisory Board

13. Workplan
13

14. Concepts for best practices
addressing environmental needs –
What is required?

15. • Implementability
• Efficiency
• Impact on the environment
• Secondary effects
• Controllability
• (Costs)
Criteria for selection of mitigation measures

16. Livestock feeding
• Avoid N surplus from the very beginning of the manure management
continuum
• Adjust animal diet to animal performance
• Reduce N excretion with the urine
• Dairy cattle:
- reduction of crude protein content in the diet
- increase milk yield with moderate level of concentrates
- increase production cycles per cow
• Pigs:
- reduction of crude protein content in the diet
- multiphase feeding

17. Livestock housing
• reduction of indoor temperature
• reduction of emitting surfaces, reduction of soiled areas
• reduction of air flow over soiled surfaces
• use of additives (e.g. urease inhibitors, acidification)
• regular removal of slurry to an outside store
• in the longer term: smart barns with optimised
ventilation

18. Manure storage and treament
• manure storage outside the barn
• cover of slurry stores
• manure treatment to
• reduce slurry dry matter content
• increase slurry NH4 content
• slurry separation
• anaerobic digestion
• acidification

19. Manure application
• make maximum use of manure
nutrients
• low trajectory application
• application according to crop demand
(amount and timing)
• immediate incorporation

20. Concepts for best practices addressing
environmental needs
1.Detailed understanding at process level:
• drivers and controls of emission processes

21. Concepts for Best practices addressing environmental
needs
1. Detailed understanding at process level
2. Consideration of pollutants and interactions:
• various forms of nitrogen and other pollutants
• all stages of the manure management chain
• interaction with climate change
• interaction with animal welfare issues
• interaction with between different emissions
• interactions with landscape issues

22. Concepts for Best practices addressing environmental
needs
1. Detailed understanding at process level
2. Consideration of pollutants and interactions:
3. Development of flexible concepts for environmental
improvement
• Climate and site specific conditions are highly variable
• Three columns of sustainability must be considered
• Conflicts of interest must be addressed
• Concepts must be flexible and targeted for the specific
region

23. Concepts for best practices addressing environmental
needs
1. Detailed understanding at process level
2. Consideration of pollutants and interactions:
3. Development of flexible concepts for sustainable
intensification
• Climate and site specific conditions are highly variable
• Three columns of sustainability must be considered
• Conflicts of interest must be addressed
• Concepts must be flexible and targeted for the specific
region