用8种测定交换性阳离子和离子交换量(CEC)的方法对美国阿拉巴马洲某些高度风化的水(标)准点土壤进行了比较研究。选择0.1MBaCl_2法作为测定这些高度风化土壤交换性阳离子和CEc的标准方法,将其它方法与该法进行比较。结果表明,与其它各种加和法比较,1NNH_4OAc代换法测得的CEC值显然高得多。但BaCl_2法的测定结果与包括浸提性Al的各种加和法所得的结果很相近。 Eight highly weathered water (quasi) point soils in the Alabama area of ​​the United States were compared using eight methods for the determination of exchangeable cation and ion exchange capacity (CEC). The 0.1 MBaCl 2 method was chosen as the standard method for the determination of exchangeable cations and CEc in these highly weathered soils and to compare with other methods. The results show that, compared with other various addition methods, 1NNH4OAc substitution method was significantly higher CEC values. However, the results of the BaCl 2 method are similar to those obtained from various addition methods including the leaching Al.