1 / 22

Voluntary Reporting of Greenhouse Gases CarbOn Management Evaluation Tool (COMET-VR)

Voluntary Reporting of Greenhouse Gases CarbOn Management Evaluation Tool (COMET-VR). Joint effort between USDA and Colorado State University Natural Resource Ecology Laboratory John Brenner USDA-NRCS WNTSC AQ/AC Change Team Portland, OR. COMET-VR. BACKGROUND

tiger-vaughan
Download Presentation

Voluntary Reporting of Greenhouse Gases CarbOn Management Evaluation Tool (COMET-VR)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Voluntary Reporting of Greenhouse Gases CarbOn Management Evaluation Tool (COMET-VR) Joint effort between USDA and Colorado State University Natural Resource Ecology Laboratory John Brenner USDA-NRCS WNTSC AQ/AC Change Team Portland, OR

  2. COMET-VR • BACKGROUND • 20 Land Resource Regions with subdivisions • Century SOM Model with an uncertainty estimate • Ave of 3.6 million records per LRR (90 mil total) • Takes ~20 working days to recalculate entire dataset • Difficult to manage such a large dataset

  3. COMET-VR • APPLICATION • WEB based • Crop production • SOIL CARBON emissions and sequestration • Fuel and energy use (estimate or user specified) • Grazing livestock • SOIL CARBON emissions and sequestration

  4. Agricultural Experiments

  5. Methods • Use Century to model the management impacts on SOC storage based on field experiments - 60 experiments with over 800 treatments • Statistically evaluate differences between the model results and field measurements for SOC storage • linear-mixed effect model reflecting uncertainties in model and measurements • prediction error for the LRR carbon estimates

  6. climate soil texture potential vegetation length of practice land management systems tillage practices residue management organic amendments fertilizer management Management/Environmental Variables of Interest

  7. Required Responses to Utilize COMET-VR • Location • State and County • Parcel Information • Soils Information • Soil Texture/Hydric Condition • Management History (crop rotations, tillage systems or grazing systems) • Pre 1970’s • 1970’s-1990’s • Base: 1990’s-Current • Reporting Period: Current + 10 years

  8. Century SOM Model Survey Data: Land Use and Mgmt Data (CSRA) Plant Growth CO2 Residues CO2 CO2 CO2 CO2 WEB INTERFACE Active SOM Slow SOM Passive SOM CO2 CO2 Spatial Data: Soils and Climate Uncertainty Estimator Results 1605b Experiments Modeling Procedure Response returned in < 5 seconds

  9. SUMMARY • Flexible Tool • Web based • Update and expand easily • Expandable to address other GHG’s in agriculture • Uses • 1605b reporting system • Conservation programs

  10. PARTICIPANTS • Colorado State University - Natural Resource Ecology Laboratory • Keith Paustian, Kendrick Killian, Steve Ogle, Mark Easter, Steve Williams • USDA • NRCS - Jill Schuler, Joel Brown and Maury Mausbach (retired) • ARS - Ron Follett, Steve Shafer and Mike Jawson • GCPO - Bill Hohenstein and Kathryn Bickel

More Related