土壤团聚体分析,是鉴定土壤结构的重要手段之一。因为土壤结构的严格意义,也意味着土壤的“团聚状态”(Kullmann,1961)。好的土壤结构,主要是由多孔的、机械稳定的和水稳性的团聚体所构成的。能不能正确反映土壤的结构状况,在很大程度上要取决于所采用的分析方法。 目前世界各国所曾应用的和正在应用的团聚体分析方法,种类繁多,不仅在不同的国家里所采用的方法不同,即使在同一个国家,也同时流行着几种不同的分析方法。因此,对于这些方法的评价,确不是一件易事,而且由于各个作者采用的方法不同,对其所得的材料也无从比较。 现就湿筛分析的发展近况及分析过程中的某些具 Soil aggregates analysis is one of the important means to identify soil structure. Because of the strict meaning of the soil structure, it also means the “reunion state” of the soil (Kullmann, 1961). A good soil structure consists mainly of porous, mechanically stable and water-stable aggregates. Whether or not the structure of the soil is properly reflected depends to a large extent on the analytical method used. At present, there are a large variety of aggregate analysis methods used and being applied in various countries all over the world. Not only the methods adopted in different countries are different, but also several different analysis methods are popularized simultaneously in the same country. Therefore, the evaluation of these methods is not an easy task, and because of the different methods adopted by individual authors, there is no comparison of the materials they receive. Now the development of wet sieve analysis of the status quo and analysis of some of the tools