1. The implementation of Carbon Budget Model at EU level
Roberto Pilli, Giacomo Grassi, Nuria Guerrero, Giulia Fiorese
JRC technical workshop 2014
5-7 May 2014 Arona (Italy)

2. Since 2010, JRC is working to develop an in-house model capacity to estimate the EU carbon budget at country level for each EU MS
After a preliminary analisis of the main models applied at international level, the Carbon Budget Model (CBM) developed by the Canadian Forest Service was selected as potential tool
Between 2010 and 2012, the model was applied to a specific case study in order:
to test the CBM in different silvicultural systems, proposing a novel approach to model the uneven-aged forest structure
to apply the CBM to a European country and estimate the forest C balance of the FM area
to explore the impact on the C balance of different scenario assumptions (i.e., harvest rates and disturbance events)

3. The model was applied to 26 EU countries Considering: FM area ARD
Fire & storms
HWPs

4. What is the Carbon Budget Model ?
It is an inventory-based, yield-data driven model, that simulates the evolution of the C budget of forests, including the effect of natural and human-induced disturbance events (Kurz et al., 2009)
CBM
Other data
NFI data

5. What the CBM need … Input by NFI data Area Total Forest area
IMPORTANCE
Input by NFI data
ESSENTIAL
REQUESTED
USEFUL
ADDITIONAL
Area
Total Forest area
By age classes
By broadleaves/conifers and by regions
By main species and management types ( i.e. coppices/high forests)
Growing stock
Volume per ha
at NUTS 1 level
By broadleaves/conifers
By main species
By age classes, regions and MT
Increment
Increment per ha at NUTS 1 level
By main species and age classes
By regions and MT
Tot. abovegr. biomass
By main species and regions
Natural disturbances
Area/biomass affected by natural disturbances
Silvicultural treatments
By main species and MT
Harvest share

6. CBM C stock by forest pools BY What CBM provides … Main species
C stock change
Age class evolution BY
Main species
Regions
Silv. systems
C stock by forest pools
CBM

7. CBM output: the C stock

8. CBM output: the C stock change

9. The age class evolution on even-aged forests
CBM output ...
The age class evolution on even-aged forests
The model’s run simulates the age class evolution from TS 0 to …

10. CBM output: the tree selection system on an uneven aged high forests

11. FUTURE & PAST Estimates Effect of Natural disturbances
What CBM provides …
FUTURE & PAST Estimates
Effect of Natural disturbances BY
Main species
Regions
Silv. systems
C stock change
C stock by forest pools
CBM
Age class evolution
Effect of Harvest

12. CBM outputs …
from the reference NFI year forward
C stock change of each pool at country level, accounting for the effect of harvest
NFI year

13. CBM outputs … Comparing results with historical data !
from the reference NFI year backward
Comparing results
with historical data !

14. CBM outputs …
including effect of
natural disurbances

15. FUTURE & PAST Estimates Effect of Natural disturbances
What CBM provides …
FUTURE & PAST Estimates
Effect of Natural disturbances BY
Main species
Regions
Silv. systems
C stock change
C stock by forest pools
CBM
Age class evolution
Effect of Harvest
Link to HWPs

16. CBM outputs: detailed accounting of each HWP pool
Forest C sink
HWP C sink
IPCC Tier 2 approach

17. Thank you