title: Potential of global croplands and bioenergy crops for climate change mitigation through deployment for enhanced weathering.
abstract: Conventional row crop agriculture for both food and fuel is a source of carbon dioxide (CO2) and nitrous oxide (N2O) to the atmosphere, and intensifying production on agricultural land increases the potential for soil C loss and soil acidification due to fertilizer use. Enhanced weathering (EW) in agricultural soils-applying crushed silicate rock as a soil amendment-is a method for combating global climate change while increasing nutrient availability to plants. EW uses land that is already producing food and fuel to sequester carbon (C), and reduces N2O loss through pH buffering. As biofuel use increases, EW in bioenergy crops offers the opportunity to sequester CO2while reducing fossil fuel combustion. Uncertainties remain in the long-term effects and global implications of large-scale efforts to directly manipulate Earth's atmospheric CO2composition, but EW in agricultural lands is an opportunity to employ these soils to sequester atmospheric C while benefitting crop production and the global climate.
authors.affiliation: Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA ikantola@illinois.edu.|Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Ilsa B
authors.identifier: 0000-0002-3522-8756
authors.initials: IB
authors.lastname: Kantola
authors.affiliation: Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.|Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Masters
authors.affiliation: Department of Animal and Plant Sciences, Western Bank, University of Sheffield, Sheffield S10 2TN, UK.
authors.forename: David J
authors.initials: DJ
authors.lastname: Beerling
authors.affiliation: Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.|Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Stephen P
authors.identifier: 0000-0002-8501-7164
authors.initials: SP
authors.lastname: Long
authors.affiliation: Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.|Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.|Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Evan H
authors.initials: EH
authors.lastname: DeLucia
mesh_terms: D000383:Agriculture; D002245:Carbon Dioxide; D002980:Climate; D057231:Climate Change; D018556:Crops, Agricultural; D012987:Soil
chemical_list: D012987:Soil; D002245:Carbon Dioxide
keywords: agriculture; basalt; biofuels; carbon sequestration; global climate change; silicate weathering