Charge characteristics of a typic Gibbsihumoa (Halii soil) and a hydric Dystrandept (Maile soil)were investigated. The specific surface of Maile soil is about two times greater than that of Halii soil. The pH0 of Maile soil equal to 5.90 and pH0 of Halii soil equal to 4.55 specifically, adsorbed calcium ions shift the pH0 to lower values and specifically adsorbed sulfate anions shift bhe pH0 to higher values, when CaCl2 or Na2SO4 and CaSO4 are used as the supporting electrolytes. It was found that a positive permanent charge existed for the Halii soil and a negative permanent charge existed for the Maile soil by using the surface charge model developed by Uehara and Gillmsn.
参考文献
相似文献
引证文献
引用本文
李学垣.两种夏威夷热带土壤的表面电荷特征[J].土壤学报,1985,22(2):120-126. Li Xueyuan. CHARGE CHARACTERISTICS OF A TYPIC GIBBSIHUMOX AND A HYDRIC DYSTRANDEPT[J]. Acta Pedologica Sinica,1985,22(2):120-126.