Research on soil organic carbon distribution and change trend in middleeast plain and its vicinity in China.
XI Xiao-Huan, LI Min-*, ZHANG Xiu-Zhi, ZHANG Yan-Beng, ZHANG De-Cun, ZHANG Jian-Xin, DOU Lei, YANG Yi
Earth Science Frontiers . 2013, (1): 154 -165 .