Under the support by the National Natural Science Foundation of China and the State Key Laboratory of Loess and Quaternary Geology Fund,the research team led by Prof.Chen YiPing (陈怡平) at the Institute of Earth Environment,Chinese Academy of Sciences,cooperated with Prof.He XinHua (何新华) at the School of Plant Biology,University of Western Australia,reported recently in Nature Geoscience (2015,8:739-741) on the "balancing Grain for Green trade" on the Loess Plateau.