School of Land Science and Technology;
China University of Geosciences;
Beijing 100083;
China;
State Key Laboratory of Soil and Sustainable Agriculture.institute of Soil Science;
Chinese Academy of Sciences;
Nanjing 210008;
China;
Section of Soil and Crop Sciences;
Cornell University;
Ithaca;
NY 14850;
USA;
College of Resources and Environmental Sciences;
Henan Agricultural University;
Zhengzhou 450000;
China;
calcic; evidence; Calcic; Hapli-Ustic; Cambosols; calcic; horizon; calcification; hypercalcic; horizon; parent; material;