This dataset identifies agricultural areas that are likely to have been drained for crop production, usually through subsurface tile drainage, in the Midwestern United States. These areas were identified based on the natural drainage condition of the soil,...
Subirrigation is the application of irrigation water below the ground surface to raise the water table to within or near the root zone. In areas with subsurface tile drainage, the same drains that remove excess water during wet periods can be used to provi...
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