Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Potential of global croplands and bioenergy crops for climate change mitigation through deployment for enhanced weathering
AU - Kantola, I.B.
AU - Masters, M.D.
AU - Beerling, D.J.
AU - Long, S.P.
AU - DeLucia, E.H.
PY - 2017/4/5
Y1 - 2017/4/5
N2 - 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 CO2 while reducing fossil fuel combustion. Uncertainties remain in the long-term effects and global implications of large-scale efforts to directly manipulate Earth's atmospheric CO2 composition, but EW in agricultural lands is an opportunity to employ these soils to sequester atmospheric C while benefitting crop production and the global climate. © 2017 The Author(s) Published by the Royal Society. All rights reserved.
AB - 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 CO2 while reducing fossil fuel combustion. Uncertainties remain in the long-term effects and global implications of large-scale efforts to directly manipulate Earth's atmospheric CO2 composition, but EW in agricultural lands is an opportunity to employ these soils to sequester atmospheric C while benefitting crop production and the global climate. © 2017 The Author(s) Published by the Royal Society. All rights reserved.
KW - Agriculture
KW - Basalt
KW - Biofuels
KW - Carbon sequestration
KW - Global climate change
KW - Silicate weathering
KW - agricultural emission
KW - agricultural land
KW - agricultural soil
KW - atmosphere-biosphere interaction
KW - basalt
KW - bioenergy
KW - carbon dioxide
KW - carbon sequestration
KW - climate change
KW - crop production
KW - energy crop
KW - global climate
KW - mitigation
KW - nitrous oxide
KW - nutrient availability
KW - soil carbon
KW - weathering
KW - agriculture
KW - climate
KW - crop
KW - soil
KW - Carbon Dioxide
KW - Climate
KW - Climate Change
KW - Crops, Agricultural
KW - Soil
U2 - 10.1098/rsbl.2016.0714
DO - 10.1098/rsbl.2016.0714
M3 - Journal article
VL - 13
JO - Biology Letters
JF - Biology Letters
SN - 1744-9561
IS - 4
M1 - 20160714
ER -