GUO Cheng-shi, MA Dong-hao, ZHANG Cong-zhi, ZHANG Jia-bao, CAI Tai-yi, ZHOU Gui-xiang, CHEN Jie. The Structural Characteristics of Organic-Inorganic Complexes and the Mechanism of Its Influences on Soil Color in the Calci-Aquic Vertisols[J]. Spectroscopy and Spectral Analysis, 2020, 40(8): 2434