1. Crop and Soil Environmental Science Department; Virginia Polytechnic Institute and State University; Blacksburg Virginia USA
2. Department of Civil and Environmental Engineering; American University of Beirut; Beirut Lebanon
3. Oregon Climate Change Research Institute, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University; Corvallis Oregon USA
4. Department of Biological and Ecological Engineering Department; Oregon State University; Corvallis Oregon USA