theme 1: main session outcomes and key messages
TRANSCRIPT
![Page 1: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/1.jpg)
Theme 1: Monitoring, mapping, measuring, reporting and verification (MRV) of SOC
Liesl Wiese
![Page 2: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/2.jpg)
Summary
28 Oral presentations• 2 parallel sessions
15 Poster presentations
![Page 3: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/3.jpg)
KEY QUESTIONS
Q1-1: What are the latest and reliable reference values for SOC stocks, and stock change factors based on country- or region-specific data for the most important land uses to be updated in the 2006 IPCC Guidelines?
Q1-2: What are the recent developments in reliable methods and models to quantify stock changes and how can these be best applied for SOC measurement and monitoring?
Q1-3: How can the uncertainties of SOC stock and stock change estimates be reduced?
Q1-4: Should specific MRV guidelines be developed to track SOC stocks and stock changes and if yes, what are the main methodological considerations?
![Page 4: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/4.jpg)
• IPCC tables of reference values need to be updated
• Still used by many countries due to lack of national values
• Incentivize countries to develop national reference values
• Capacity development and training need
Q1-1: What are the latest and reliable reference values for SOC stocks, and stock change factors based on country- or region-specific data for the most important land uses
![Page 5: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/5.jpg)
Q1-1: What are the latest and reliable reference values for SOC stocks, and stock change factors based on country- or region-specific data for the most important land uses
• Go to Tier 2 level using reference tables as transition step
• Emphasis developing stock change values• Land use matrix
• Goal to improve soil carbon management• More detailed assessment• Broaden discussion to include C by soil type
![Page 6: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/6.jpg)
Q1-4: Should specific MRV guidelines be developed to track SOC stocks and stock changes and if yes, what are the main methodological considerations?
- Yes, ensure that SOC is properly addressed and monitored.
- Guidelines should support the carbon market based mechanisms (standards to be defined).
- Comparability between countries and how bottom-up approach applied (national to global).
![Page 7: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/7.jpg)
Q1-4: Should specific MRV guidelines be developed to track SOC stocks and stock changes and if yes, what are the main methodological considerations?
- Tiered approach to provide simpler and more accessible methods for countries with less capacity
- Time periods to detect stock changes and associated sampling density
![Page 8: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/8.jpg)
Q1-4: Should specific MRV guidelines be developed to track SOC stocks and stock changes and if yes, what are the main methodological considerations?
- Grid based sampling and monitoring sites- Data management implications - Drivers of SOC stocks and stock changes
need to be incorporated in guidelines
![Page 9: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/9.jpg)
Q1-3: How can the uncertainties of SOC stock and stock change estimates be reduced?
• Uncertainties should be measured • Improving bottom-up / top-down integration can
reduce uncertainties• Guidelines can be improved for Tier 3
uncertainty assessments
![Page 10: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/10.jpg)
Q1-3: How can the uncertainties of SOC stock and stock change estimates be reduced?
• Guidelines should address harmonization procedures
• Mineral and organic soils intermediate classes• Improved protocols needed for quality control
and quality assessment
![Page 11: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/11.jpg)
Q1-3: How can the uncertainties of SOC stock and stock change estimates be reduced?
• Land use change and management uncertainty• Verification of coarse uncertainty at smaller
scales• Financial implication of reduced uncertainty
![Page 12: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/12.jpg)
Q1-2: What are the recent developments in reliable methods and models to quantify stock changes and how can these be best applied for SOC measurement and monitoring?
• Need predictions at global and local scales with appropriate spatial resolutions
• Different resolutions have different purpose – reporting vs enabling improved soil management
• Different models have different assumptions, multi-model approaches to reduce the model uncertainties
![Page 13: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/13.jpg)
Q1-2: What are the recent developments in reliable methods and models to quantify stock changes and how can these be best applied for SOC measurement and monitoring?
• Common sampling and analysis protocols needed• Assessment of old and new models, their
application and modifications• Proximal sensing can be used to measure C stock
and stock changes – regional calibration
![Page 14: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/14.jpg)
Q1-2: What are the recent developments in reliable methods and models to quantify stock changes and how can these be best applied for SOC measurement and monitoring?
• Laboratory networks for measuring + monitoring• Include soil erosion in modelling• Include well defined specifications for gravel
measurement to remove bias• Importance of storing samples from reference
sites
![Page 15: Theme 1: Main session outcomes and key messages](https://reader036.vdocuments.us/reader036/viewer/2022062903/58e4e52b1a28ab87378b4c57/html5/thumbnails/15.jpg)