State Key Laboratory of Soil and Sustainable Agriculture;
Institute of Soil Science;
Chinese Academy of Sciences;
Nanjing 210008(China);
University of Chinese Academy of Sciences;
Beijing 100049(China);
Key Laboratory of Ecosystem Network Observation and Modeling;
Institute of Geographic Sciences and Natural Resources Research;
Chinese Academy of Sciences;
Beijing 100101(China);
Section of Crop&Soil Sciences;
Cornell University;
Ithaca NY14853(USA);