GHG Inventory - 2006

AFOLU :

Agriculture, Forests and Other Land Use

Lessons from 1996 GL• GHG emissions/removals from all land categories

& conversions not addressed, methods not given• All carbon pools not included in default methods• Non-CO2 gas emissions from Savanna burning

presented in Chapter 4 (Agriculture), but Savanna considered in Chapter 5 (Forests)

• Lack of synergy between N2O loss sections (Agriculture) and CO2 loss sections (LUCF) in soils

- N2O from soil; in agriculture - CO2 from soil; in LUCF• Absence of linking biomass and soil carbon

Key-problems faced by parties using revised IPCC – 1996 GL

• IPCC – GL classification of forests and other land categories not compatible with national system of classification

• Lack of clarity on ‘managed forest’, ‘managed natural forest’ and ‘natural forest’

• Limited guidance on uncertainty • Absence of methods for CH4 from agricultural

soils, below ground biomass etc. GPG 2000, GPG 2003 addressed some of these issues

Limitations of GPG 2003• Lack of clarity on managed and unmanaged land• Methods/approaches need to be made more user-

friendly• Description of methods diffused across different

chapters/sectors• Inadequate guidance for Tier-3 methods• Inconsistency in treatment of DOM• Emissions from burning of Savannas; agriculture

or forest or grassland• Level of disaggregation for different land

categories and livestock categories

AFOLU – key features

• Merging of Agriculture, Forest &other Land uses and Livestock systems

• Adoption of GPG 2003 approach - all land categories in an integrated way - inclusion of livestock and manure arrangement - inclusion of all C-pools and relevant non-CO2 gases in default approach• Incorporation of key source category analysis - land use categories - C-pools and non-CO2 gases

AFOLU – key features

• Adoption of 3-tier methods - Tier-1; default methods and data - Tier-2; simple equations and country specific data - Tier-3; models and inventory programs • Improved default data and use of EFDB• Improved guidance for T-2 and T-3• Improved treatment of uncertainties• Common methodology chapter• Volume-1; Cross cutting issues• Reporting Tables & Worksheets (for default methods)

Status/progress• Chapter outline approved and being used for different

sections• Zero-order draft of different sections nearly ready• ISSUES: 1. uncertainty estimates; limited data 2. treatment of HWP 3. treatment of DOM 4. C-stock transfers; biomass, DOM, SOC 5. limited default data for many EF/RF 6. adoption of land use/management systems compatible to default data and national system of classification 7. Mapping back of GHG estimates between 2006 GL and

1996 GL

AFOLU – Approved Table of Contents• Overview and cross-cutting issues• Consistent representation of lands/management systems• Summary of the methodologies (and general equations for pools

& gases)• Agriculture

- Cropland- Grassland- Livestock

• Forest lands- forest land remaining forest land- land converted to forest land

• Wetlands- peat lands- flooded lands

• Settlements• Other land categories• Other

- HWP (taking into consideration any decision of the COP on this matter)

Steps adopted for 2006 GL1.Select all land categories and management systems

(livestock & manure) relevant to the country (based on Chapter 4.2)

2.Conduct key source/sink category analysis - land categories, livestock management systems - carbon pools - non-CO2 pools3. Select appropriate Tier level based on - key-category analysis - resources/national circumstances4. Select the method of estimation (equations) based on Tier selected

Steps adopted for 2006 GL5. Assemble activity data and emission factors and

estimate GHG emissions/removal6. Estimate uncertainty7. Adopt QA and QC procedures8. Report GHG emissions/removal using the

reporting tables9. Document and archive all information