1. Department of Civil Engineering, University of Nebraska-Lincoln, Peter Kiewit Institute,
Omaha, Nebraska 68182-0178, United States
2. School of Natural Resources, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0844,
United States
3. Northeast Research
and Extension
Center, University of Nebraska-Lincoln,
Concord, Nebraska 68728-2828, United States
4. West Central Research and Extension
Center, University of Nebraska-Lincoln,
North Platte, Nebraska 69101-7751, United States
5. United States Department of Agriculture-ARS, Northwest Irrigation and Soils Research
Laboratory, Kimberly, Idaho