Spatial pattern maize production (IMAGE)
Caption
Spatial pattern of improvements in net benefits of maize production. Top: Net benefits (farmer profits minus pollution costs) per t of maize grown in Midwest counties for current practices (left) and three changes in agricultural practices: Limiting NH3 loss (center, left); limiting NH3 loss plus lowering N input (center, right); and limiting NH3 loss plus lowering N input plus land retirement (right). Counties with gray shading (right-most panel) retire land from production. Bottom: Counties ranked from largestto smallest net benefits per t(leftto right). The green area above the horizontal line represents the cumulative net benefits of production in counties where profits exceed pollution costs, and purple areas below the horizontal line represent the cumulative net costs in counties where the opposite is true.
Credit
Goodkind et al.
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Original content