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Table 4 Changes in US cropland by AEZ due to US ethanol production (1,000 ha)

From: The role of irrigation in determining the global land use impacts of biofuels

  Unconstrained Constrained
  Irrigated Rainfed Total Irrigated Rainfed Total
AEZ       
 AEZ1 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ2 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ3 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ4 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ5 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ6 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ7 1,550.5 −1,349.2 201.3 0.0 291.7 291.7
 AEZ8 580.6 −449.9 130.7 0.0 183.7 183.7
 AEZ9 0.7 49.1 49.8 0.9 58.6 59.4
 AEZ10 8.6 469.8 478.4 9.9 541.3 551.2
 AEZ11 8.6 334.5 343.1 10.1 390.6 400.7
 AEZ12 −6.5 125.7 119.2 −9.0 176.6 167.6
 AEZ13 24.2 −18.4 5.8 0.0 11.6 11.6
 AEZ14 −0.3 4.6 4.3 0.0 4.7 4.7
 AEZ15 0.0 0.3 0.4 0.0 0.6 0.6
 AEZ16 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ17 0.0 0.0 0.0 0.0 0.0 0.0
 AEZ18 0.0 0.0 0.0 0.0 0.0 0.0
Total 2,166.5 −833.5 1,333.0 11.8 1,659.3 1,671.2
  1. Obtained from unconstrained and constrained experiments. The USA has no land in AEZ1 to AEZ6 and AEZ16 to AEZ18.