1. School of Environmental Sciences, Soils and Landscape Processes, University of Guelph, Guelph, ON, Canada
2. Soil Sciences and Engineering Department, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
3. Department of Vegetation Studies, Landscape Management, Federal Institute of Hydrology, Koblenz, Germany
4. Soil Sciences Department, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
5. School of Plant and Environmental Sciences, Virginia Tech. University, Blacksburg, Virginia, USA