Effect of adsorption-desorption of boron on surface properties of soil
Effect of adsorption-desorption of boron on surface properties of soil
Chen XiuHong; Zhu DuanWei; Cheng DongSheng; Liu WuDing
Acta Pedologica Sinica 39(2): 145-151
2002
Three types of Point of Zero Charge (PZC), i.e., ck-PZC (Without B), ads-PZC (B adsorption) and des-PZC (B desorption), were measured in brown-red soil, yellow-brown soil and calcareous alluvial soil collected from Hubei Province, China. The ads-PZC, compared with its ck-PZC, decreased by 0.9 pH unit for the brown-red soil, and only by 0.3 pH unit for the yellow-brown soil, but the corresponding adsorbed H+ (the potential ion) increased by 3.3 and 3.5 cmol kg-1, respectively.