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- Ale, S., et al. Show all 3 Authors
- Agricultural water management 2009 v.96 no.4 pp. 627-637
- estimation; topography; image analysis; agricultural land; geographic information systems; aerial photography; tile drainage; intensive farming; subsurface drainage; agricultural watersheds; Indiana
- ... Detailed location maps of tile drains in the Midwestern United States are generally not available, as the tile lines in these areas were laid more than 75 years ago. The objective of this study is to map individual tile drains and estimate drain spacing using a combination of GIS-based analysis of land cover, soil and topography data, and analysis of high resolution aerial photographs to within th ...
- Ale, S., et al. Show all 5 Authors
- Agricultural water management 2009 v.96 no.4 pp. 653-665
- crop yield; hydrologic models; simulation models; Zea mays; winter; water management; agricultural runoff; corn; prediction; plant stress; seepage; lysimeters; water flow; streams; growing season; pollution load; nitrates; water table; Indiana
- ... The hypothetical effects of drainage water management operational strategy on hydrology and crop yield at the Purdue University Water Quality Field Station (WQFS) were simulated using DRAINMOD, a field-scale hydrologic model. The WQFS has forty-eight cropping system treatment plots with 10m drain spacing. Drain flow observations from a subset of the treatment plots with continuous corn (Zea mays L ...