Cited by 92Bioeconomy and Sustainability DevelopmentLand Use and Ecosystem ServicesBioenergy crop production and management

Biofuels and Land Use Change: Applying Recent Evidence to Model Estimates

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Taheripour, Farzad, Tyner, Wallace·2013·Applied Sciences

Abstract

Biofuels impact on global land use has been a controversial yet important topic. Up until recently, there has not been enough biofuels to have caused major land use change, so the evidence from actual global land use data has been scant. However, in the past decade, there have been 72 million hectares added to global crop cover. In this research we take advantage of this new data to calibrate the Global Trade Analysis Project (GTAP) model and parameters. We make two major changes. First, we calibrate the land transformation parameters (called constant elasticity of transformation, CET) to global regions so that the parameters better reflect the actual land cover change that has occurred. Second, we alter the land cover nesting structure. In the old GTAP model, cropland, pasture, and forest were all in the same nest suggesting, everything else being equal, that pasture or forest convert to cropland with equal ease and cost. However, we now take advantage of the fact that pasture converts to cropland at lower cost than forest. The paper provides the theoretical and empirical justification for these two model improvements. Then it re-evaluates the global land use impacts due to the USA ethanol program using the improved model tuned with actual observations. Finally, it shows that compared to the old model, the new model projects: (1) less expansion in global cropland due to ethanol expansion; (2) lower U.S. share in global cropland expansion; (3) and lower forest share in global cropland expansion.

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  1. Lubowski, R. Determinants of Land Use Transitions in the United States: Econometrics Analysis of Changes among the Major Land-Use Categories. Ph.D. Thesis, Harvard University, Cambridge, MA, USA, February 2002.

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Authors
Taheripour, F., & Tyner, W.
Affiliations
Purdue University West Lafayette (US)
Corresponding author
Taheripour, Farzad
Venue
Applied Sciences
Publisher
MDPI AG
Published
2013-01-11
Volume
3
Issue
1
Pages
14-38
ISSN
2076-3417 (ISSN-L)
OpenAlex
W2129950775
Cited by
92
References
15
Citations by year
2026: 1 · 2025: 2 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 11 · 2020: 5 · 2019: 8 · 2018: 7 · 2017: 15 · 2016: 8 · 2015: 6 · 2014: 5 · 2013: 6
FWCI
29.86
Type
journal article
Language
en
Open access
Locations
  • Applied Sciences (publishedVersion, cc-by)
  • Purdue e-Pubs (Purdue University System) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Agricultural and Biological Sciences › General Agricultural and Biological Sciences › Bioeconomy and Sustainability Development
  • Physical Sciences › Environmental Science › Global and Planetary Change › Land Use and Ecosystem Services
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
Keywords
biofuels, land use change, cropland expansion, GTAP, model calibration, forest conversion, pasture conversion, land use effects

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