Affiliation: | 1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, P. R. China;2. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, P. R. China;3. School of Agriculture, Ningxia University, Yinchuan, P. R. China;4. Institute of Environmental Sciences, University of the Bosphorus, Istanbul, Turkey |