Carbon Calculator for Land Use Change from Biofuels Production (CCLUB). Users' Manual and Technical Documentation

Technical Report · Tue May 01 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1044524· OSTI ID:1044524

Mueller, S. ^[1]; Dunn, J. B. ^[2]; Wang, M. ^[2]

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1. Univ. of Illinois, Chicago (United States) Energy Resources Center
2. Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Transportation Research

The Carbon Calculator for Land Use Change from Biofuels Production (CCLUB) calculates carbon emissions from land use change (LUC) for four different ethanol production pathways including corn grain ethanol and cellulosic ethanol from corn stover, miscanthus, and switchgrass. This document discusses the version of CCLUB released May 31, 2012 which includes corn, as did the previous CCLUB version, and three cellulosic feedstocks: corn stover, miscanthus, and switchgrass. CCLUB calculations are based upon two data sets: land change areas and above- and below-ground carbon content. Table 1 identifies where these data are stored and used within the CCLUB model, which is built in MS Excel. Land change area data is from Purdue University's Global Trade Analysis Project (GTAP) model, a computable general equilibrium (CGE) economic model. Section 2 describes the GTAP data CCLUB uses and how these data were modified to reflect shrubland transitions. Feedstock- and spatially-explicit below-ground carbon content data for the United States were generated with a surrogate model for CENTURY's soil organic carbon sub-model (Kwon and Hudson 2010) as described in Section 3. CENTURY is a soil organic matter model developed by Parton et al. (1987). The previous CCLUB version used more coarse domestic carbon emission factors. Above-ground non-soil carbon content data for forest ecosystems was sourced from the USDA/NCIAS Carbon Online Estimator (COLE) as explained in Section 4. We discuss emission factors used for calculation of international greenhouse gas (GHG) emissions in Section 5. Temporal issues associated with modeling LUC emissions are the topic of Section 6. Finally, in Section 7 we provide a step-by-step guide to using CCLUB and obtaining results.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1044524
• Report Number(s): ANL/ESD/12--5
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
AGRICULTURAL WASTES
BIOFUELS
CALCULATORS
CARBON
CELLULOSIC ETHANOL
DOCUMENTATION
ECONOMICS
ECOSYSTEMS
ETHANOL
FORESTS
GREENHOUSES
LAND USE
MAIZE
ORGANIC MATTER
PRODUCTION
SIMULATION
SOILS
SWITCHGRASS