1. The Pennsylvania State UniversityDepartment Ecosystem Science and Management 116 ASI Building University Park PA 16802 USA
2. West Virginia UniversityDavis College of Agriculture, Natural Resources & Design 4100 Agricultural Sciences Building, PO Box 6108 Morgantown WV 26506 USA
3. USDA‐Natural Resources Conservation Service Room 4836 South Building, 14th & Independence Ave, SW Washington DC 20250 USA
4. University of California DavisDepartment of Land Air and Water Resources, Plant and Environmental Sciences 1 Shields Ave. Davis CA 95816 USA
5. Natural Resource Conservation ServiceSonora MLRA Soil Survey Office 19777 Greenley Rd. Sonora CA 95370 USA
6. Delaware Valley University 513 Buttonwood St. Perkasie Doylestown PA 18944 USA