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Revised Tier 1 carbon stock change factors for agroforestry: A critical step for improved MRV and national GHG reporting

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This presentation was given on 25 June 2019 by Rémi Cardinael (CIRAD) for the CCAFS and USAID webinar Making trees count: MRV for agroforestry under UNFCCC. See the introductory presentation for more detail: Agroforestry for livelihoods and climate.

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Revised Tier 1 carbon stock change factors for agroforestry: A critical step for improved MRV and national GHG reporting

  1. 1. Revised Tier 1 Carbon Stock Change Factors for Agroforestry: A Critical Step for Improved MRV and national GHG reporting Rémi Cardinael Viviane Umulisa, Anass Toudert, Alain Olivier, Louis Bockel, and Martial Bernoux remi.cardinael@cirad.fr martial.bernoux@fao.org
  2. 2. 2 Agroforestry systems are part of a broader category: Perennial crop (Volume 4 – AFOLU, Chapter 5 Cropland) “Perennial crops include trees and shrubs, in combination with herbaceous crops (e.g., agroforestry) or as orchards, vineyards and plantations such as cocoa, coffee, tea, oil palm, coconut, rubber trees, and bananas, except where these lands meet the criteria for categorisation as Forest Land”
  3. 3. 3 Perennial crop: Above-ground Biomass Tables 5.1 to 5.3 provide estimates of biomass stocks and biomass growth rates and losses for major climatic regions and agricultural systems Few non-specific data
  4. 4. 4 Perennial crop: Above-ground Biomass Tables 5.1 to 5.3 provide estimates of biomass stocks and biomass growth rates and losses for major climatic regions and agricultural systems Few non-specific data
  5. 5. 5 Perennial crop: Below-ground Biomass No-data
  6. 6. 6 Perennial crop: Soil Organic carbon - Mineral Soils For mineral soils, the default method is based on changes in soil C stocks over a finite period of time. The change is computed based on C stock after the management change relative to the carbon stock in a reference condition. Default is 1 (no-change)
  7. 7. 7 A need to have more refined data ! Above-ground Biomass: Few non-specific data Below-ground biomass: No data Soil organic carbon: No change Agroforestry in IPCC Guidelines and relevant tools
  8. 8. 8Sites of published studies on SOC (circles) and biomass (triangles) storage in various agroforestry systems. A few studies reported both SOC and biomass (squares). 122 scientific peer-reviewed articles associated with biomass C storage (50) and with soil organic carbon (SOC) (72) containing a total of 542 observations (324 and 218, respectively) The full database is available in appendix 1 and 2, available online at stacks.iop.org/ERL/13/124020/mmedia A review of available coefficients for soil organic and biomass carbon storage in agroforestry systems (using same typology and climate classification) Cardinael et al., 2018, Env Res. Letter doi.org/10.1088/1748-9326/aaeb5f
  9. 9. 9 Example of result: SOC gain/loss in land-use changes to agroforestry systems Cardinael et al., 2018, Env. Res. Letter - doi.org/10.1088/1748-9326/aaeb5f
  10. 10. 10 This review served as the basis to update Agroforestry default (above-ground and below ground biomass and accumulation rates) in the 2019 Refinement of the 2006 IPCC Guidelines © Picture: cf https://www.cirad.fr/en/news/all-news-items/articles/2018/science/agroforestry-and-ipcc-carbon-coefficients 10
  11. 11. 11 This review served as the basis to update Agroforestry default (above-ground and below ground biomass and growth rates) in the 2019 Refinement of the 2006 IPCC Guidelines
  12. 12. 12 Sunday 12th May 2019, ~11pm
  13. 13. 13 EF=1 Few non- specific data 2006 2019 Now we can have a better recognition and representation of “agroforestry” in national inventories, Nationally Determined Contribution (Paris Agreement), and any project or policy implemented.
  14. 14. 14  Coefficients submitted to the Emission Factor Data Base (EFDB) of the IPCC. Accessible to everyone  First step based on peer-reviewed papers. Refine these coefficients with data from the grey literature  Incorporate these coefficients into carbon calculators
  15. 15. http://www.fao.org/3/a-i8075e.pdf The Ex-Ante Carbon-balance Tool (EX-ACT) is an appraisal system developed by FAO providing estimates of the impact of agriculture and forestry development projects, programmes and policies on the net balance from all GHGs expressed in CO2 equivalent that were emitted or sequestered due to project implementation as compared to a business-as-usual scenario http://www.fao.org/tc/exact/ex-act-home/en/ Free E-learning: https://olc.worldbank.org/ 15
  16. 16. Revised Tier 1 Carbon Stock Change Factors for Agroforestry: A Critical Step for Improved MRV and national GHG reporting Many thanks for your attention The authors thanks the following support 15 remi.cardinael@cirad.fr martial.bernoux@fao.org

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