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最近20年以来在农业实验中很注意土壤团聚体水稳性的测定,并且出现了很多不同的测定方法[1～5,15～19],但是在实践中应用最广的却是湿筛法[6～14,20],例如苏联用得最多的是的方法,在我国、欧洲和美洲用得较多的是Yoder法,此外还有人指出,用间接的方法即根据渗水曲线的分析或者是观察土壤在湿润情况下透气性的变化也可以推断土壤
In the last 20 years, the determination of water stability of soil aggregates has been paid much attention in agricultural experiments and many different methods have been developed [1 ~ 5,15 ~ 19]. However, the most widely used method in practice is the wet sieving [6-14, 20]. For example, the most commonly used method in the Soviet Union is the Yoder method, which is more used in our country, Europe and the Americas. In addition, it is pointed out that indirect methods, Observe the soil by observing changes in the permeability of the soil under wet conditions