The global potential of bioenergy on abandoned agriculture lands
Abstract
Converting forest lands into bioenergy agriculture could accelerate climate change by emitting carbon stored in forests, while converting food agriculture lands into bioenergy agriculture could threaten food security. Both problems are potentially avoided by using abandoned agriculture lands for bioenergy agriculture. Here we show the global potential for bioenergy on abandoned agriculture lands to be less than 8% of current primary energy demand, based on historical land use data, satellite-derived land cover data, and global ecosystem modeling. The estimated global area of abandoned agriculture is 385-472 million hectares, or 66-110% of the areas reported in previous preliminary assessments. The area-weighted mean production of above-ground biomass is 4.3 tons ha(-1) y(-1), in contrast to estimates of up to 10 tons ha(-1) y(-1) in previous assessments. The energy content of potential biomass grown on 100% of abandoned agriculture lands is less than 10% of primary energy demand for most nations in North America, Europe, and Asia, but it represents many times the energy demand in some African nations where grasslands are relatively productive and current energy demand is low.
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The large spreads of low concentration abandonment in Campbell et al. (2008) highlight an additional concern in applying these datasets to the estimation of biofuel production: additional infrastructure needs for production on small areas spread over much of the Earth's surface would be inhibitive, at best.
“the large spreads of low concentration abandonment in Campbell et al. (2008) highlights an additional concern in applying these datasets to the estimation of biofuel production: additional infrastructure needs for production on small areas spread over much of the Earth's surface would be inhibitive, at best.”
From Mapping the world's degraded lands (2015) · cites this paper as Campbell et al. (2008)
Any areas mapped as greater than 50 percent abandoned agriculture in Campbell et al. (2008) are smaller (6400 km2) than those areas of disagreement discussed above.
“any areas mapped as greater than 50 percent abandoned agriculture are smaller ( 6400 km 2 ) than those areas of disagreement discussed above.”
From Mapping the world's degraded lands (2015) · cites this paper as Campbell et al. (2008)
The Campbell et al. (2008) data set does not appear to contribute to high standard deviations among the four sets because it does not contain large areas of concentrated abandonment.
“The Campbell et al. (2008) data set does not appear to contribute to high standard deviations among the four sets because it does not contain large areas of concentrated abandonment.”
From Mapping the world's degraded lands (2015) · cites this paper as Campbell et al. (2008)
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- Authors
- Campbell, J. E., Lobell, D. B., Genova, R. C., & Field, C. B.
- Affiliations
- Carnegie Institution for Science (US)
- Corresponding author
- Campbell, J. Elliott
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-06-25
- Volume
- 42
- Issue
- 15
- Pages
- 5791-5794
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1975625726
- Semantic Scholar
- 6496894bdc664dc6ec80876710391f159eaf82c6
- Cited by
- 709
- References
- 46
- Citations by year
- 2026: 22 · 2025: 29 · 2024: 29 · 2023: 39 · 2022: 42 · 2021: 46 · 2020: 41 · 2019: 33 · 2018: 28 · 2017: 39 · 2016: 36 · 2015: 48 · 2014: 45 · 2013: 56 · 2012: 58
- FWCI
- 69.42
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Environmental Science & Technology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
- Physical Sciences › Engineering › Mechanics of Materials › Forest Biomass Utilization and Management
- Life Sciences › Agricultural and Biological Sciences › General Agricultural and Biological Sciences › Bioeconomy and Sustainability Development
- Keywords
- bioenergy, abandoned farmland, land use change, bioenergy potential, forest carbon emissions, food security, primary energy demand, grassland
- MeSH terms
- Agriculture, Bioelectric Energy Sources, Conservation of Natural Resources, Forecasting, Geography, International Cooperation, Ecosystem
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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