Cited by 860Land Use and Ecosystem ServicesBioenergy crop production and managementSocioeconomics of Resources and Conservation

Recent land use change in the Western Corn Belt threatens grasslands and wetlands

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Wright, Christopher K., Wimberly, Michael C.·2013·Proceedings of the National Academy of Sciences

Abstract

In the US Corn Belt, a recent doubling in commodity prices has created incentives for landowners to convert grassland to corn and soybean cropping. Here, we use land cover data from the National Agricultural Statistics Service Cropland Data Layer to assess grassland conversion from 2006 to 2011 in the Western Corn Belt (WCB): five states including North Dakota, South Dakota, Nebraska, Minnesota, and Iowa. Our analysis identifies areas with elevated rates of grass-to-corn/soy conversion (1.0–5.4% annually). Across the WCB, we found a net decline in grass-dominated land cover totaling nearly 530,000 ha. With respect to agronomic attributes of lands undergoing grassland conversion, corn/soy production is expanding onto marginal lands characterized by high erosion risk and vulnerability to drought. Grassland conversion is also concentrated in close proximity to wetlands, posing a threat to waterfowl breeding in the Prairie Pothole Region. Longer-term land cover trends from North Dakota and Iowa indicate that recent grassland conversion represents a persistent shift in land use rather than short-term variability in crop rotation patterns. Our results show that the WCB is rapidly moving down a pathway of increased corn and soybean cultivation. As a result, the window of opportunity for realizing the benefits of a biofuel industry based on perennial bioenergy crops, rather than corn ethanol and soy biodiesel, may be closing in the WCB.

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Authors
Wright, C. K., & Wimberly, M. C.
Affiliations
South Dakota State University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-02-19
Volume
110
Issue
10
Pages
4134-4139
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2040998916
Cited by
860
References
38
Citations by year
2026: 33 · 2025: 37 · 2024: 33 · 2023: 44 · 2022: 54 · 2021: 64 · 2020: 66 · 2019: 76 · 2018: 85 · 2017: 86 · 2016: 90 · 2015: 87 · 2014: 78 · 2013: 25
FWCI
71.19
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • 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
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Socioeconomics of Resources and Conservation
Keywords
grassland conversion, land use change, Western Corn Belt, wetland loss, Prairie Pothole Region, waterfowl breeding habitat, marginal land, soil erosion, drought vulnerability, energy crops, perennial energy crops, commodity prices
MeSH terms
Agriculture, Conservation of Natural Resources, Zea mays, Poaceae, Glycine max, Midwestern United States, Ecosystem, Wetlands

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