Description of potential issues where Spanish scientists from RED REMEDIA (Agriculture, livestock and forestry sectors) could contribute to improve the IPCC Guidelines for National Greenhouse Gas Inventories

1. IN THE CONTEXT OF IMPROVING EMISSIONS AND REMOVAL
ESTIMATES AND GUIDANCE ON HOW TO PERFORM THEM
M.J. Sanz, A. del Prado (BC3)
1. Emissions from Livestock and Manure Management
Livestock population and feed characterization: improved description of feeding systems, by
developing consistent system descriptions for manure management between source
categories for basic and enhanced characterization for livestock populations for
Mediterranean climatic conditions (regions to be pick up, all or limited to Mediterranean
basin).
Methane emissions from enteric fermentation: Improve parameters based on different
feeding strategies for cattle and sheep. Suggest methodology, temperature relationships.
Possible emission Factors for different manure management systems in Spain.
Biogas: Update guidance on how to deal with non-CO2 emissions due to biogas production.
Solid waste management: Update guidance on how to deal with non-CO2 emissions (including
NH3) (e.g. through composting).
N2O emissions from manure management: considering any updated livestock
characterization proposed above (for Mediterranean climatic conditions: regions to be pick up,
all or limited to Mediterranean basin).
Update N excretion parameters for livestock categories: e.g. urine: faeces ratio.
Update emission factors for N2O for manure management system descriptions.
Update manure management volatilization and leaching factors with manure management
systems identified
Provide text on quality control procedures that use a mass balance approach to evaluate C
and N flows through animal management systems.
2. Biomass pools (ABG/BGB, litter DOM)
Use allometric approaches to improve the IPCC guidelines: Review the available information
(including the one generated in the different cycles of the NFI) on how tree biomass is
estimated in Spain (in particular for Mediterranean ecosystems, most common tree
plantations in the present management regimes and age structure); compile allometric
equations for biomass estimation for forest trees in Mediterranean conditions.
Analyse the feasibility in open Mediterranean forest of using biomass density (amount per
unit area) maps generated from remote sensing data for biomass estimation, limitations?.
There is an increasing tendency to use global or regional biomass maps generated through
remote sensing approaches, either simply delineating some sort of forest types (using some RS

2. indexes) or more sophisticated use of LIDAR GLASS profiles combined with ground data, or
next satellite generations?
Review and compile information on litter stocks and deadwood stocks for Mediterranean
forest. With the aim to provide a default values for Mediterranean forest types.
Compile above ground and below ground biomass data for most important woody/tree
crops in Spain (and Mediterranean conditions), including looking for allometric approaches to
estimate yearly growth and management practices that extract wood (like pruning etc.).
Aiming to improve estimates of biomass increase in croplands when woody crops are present,
and better knowledge on C stocks.
3. Soil organic Carbon (SOC)
Soils: Compilation of most use methods to estimate C stock changes or C fluxes from soils
based in the available information for Spanish’s forestlands, croplands and grasslands. With
the aim to propose some recommendations on which methods to use for different cases and
the comparability of the results.
Soils: are existing methods proposed to estimate SOC accumulation leading to
underestimation of SOC accumulation in Mediterranean soils?
4. N2O Emissions from Managed Soils in Mediterranean CC /
management systems
Update N2O EF1, stratification by climate: propose a EF for Mediterranean conditions /
management systems
Update crop parameters for calculating residue quantity and N.
Update the EF for N applied to soils, pasture, range and paddock by grazing animals.
Update emission factor for rice production (N2O)
Indirect N2O emissions: Evaluate emissions factors for indirect N2O, both the amount of
leaching/runoff and volatilization, as well as the indirect emission factor, is there any issue to
be highlighted in our management and climatic conditions?