Change of Trace Element Contents of Purple Soil in the Three Gorges Reservoir Region
DONG Jie, YANG Da-Yuan, ZHOU Bin, CHEN Ke-Feng, XU Qin-Mian
SCIENTIA GEOGRAPHICA SINICA . 2006, (5): 592 -596 .  DOI: 10.13249/j.cnki.sgs.2006.05.592