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CARB LCFS Expert Workgroup Land Cover Types

CARB LCFS Expert Workgroup Land Cover Types. Holly Gibbs Richard Nelson Bob Larson Bruce Babcock, Angelo Gurgel Blake Simmons Wes Ingram John Sheehan Paul Hodson. REVISED Goals and Objectives. Survey existing data sources of land cover types and agricultural conversion pathways,

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CARB LCFS Expert Workgroup Land Cover Types

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  1. CARB LCFS Expert Workgroup Land Cover Types Holly Gibbs Richard Nelson Bob Larson Bruce Babcock, Angelo Gurgel Blake Simmons Wes Ingram John Sheehan Paul Hodson

  2. REVISED Goals and Objectives • Survey existing data sources of land cover types and agricultural conversion pathways, • Consider implications for global economic models and carbon emissions factors, and • Identify land cover types suitable for cropland expansion at the global scale. We aim to drive improvements in how economic models utilize land cover and conversion data and the associated assumptions. We will also identify future research priorities.

  3. 1.) Review data sources and methods to estimate land cover types and conversion pathways • Compare and evaluate land cover data and assumptions used in EPA, CARB, Tyner / Purdue modeling frameworks.  (Richard, and . . .) • Identify other data sources and methods outside of those used by the models and unconstrained by model limitations (Holly & Richard) • Land cover / conversion data validation and uncertainty; options to reduce uncertainty • Focus on marginal lands, which deserve special attention because they are poorly defined and mapped and often pointed to as land sources for new cropland. Includes degraded land, marginal, unmanaged, idle, underutilized land etc; specific definitions and measurement issues (Richard, and . . .)

  4. 2.) Synthesize broader implications of findings from Task #1 • Implications for emissions estimates (Holly) • Implications of land cover types and conversion analysis for economic models; options for improving representation of land cover / conversion data and assumptions in models; what is possible and what is not (Angelo and Bruce?)

  5. 3.) Global analysis of land cover types suitable for cropland expansion • Identify “land cover type suitability characteristics” for agricultural expansion by considering a range of biophysical and socioeconomic conditions (Wes and John?) • Estimate total areas and locations of suitable land cover types (Wes and John?)Note that this may be a longer term, more research-oriented task..?

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