1. Department of Agroecology, Environmental Sciences Research Institute, Shahid Beheshti University, Tehran, G.C. Iran
2. College of Food, Agricultural, and Environmental Sciences, Ohio State University, Columbus, OH, USA
3. Department of Sociology, Colorado State University, Fort Collins, CO, USA
4. College of Food, Agricultural, and Environmental Sciences, Zabol University, Zabol, Iran
5. College of Agriculture, Ferdowsi University of Mashhad, Iran