Won-Ho Nam, Hankyong National University, Department of Bioresources and Rural Systems Engineering, Institute of Agricultural Environmental Science, Anseong, South Korea, Taegon Kim, University of Minnesota Twin Cities, Institute on the Environment, Minneapolis, MN, United States, Eun-Mi Hong, Kangwon National University, School of Natural Resources and Environmental Science, Chuncheon, South Korea, Song Feng, University of Arkansas, Fayetteville, AR, United States and Michael J Hayes, University of Nebraska-Lincoln, School of Natural Resources, Lincoln, NE, United States