土壤胶散复合体组成及其腐殖物质特征的研究

Composition and Humus Characteristics in Organo-Mineral Complex of Soil

以吉林省3种主要耕作土壤为供试样品,采用傅积平等修改丘林的胶散分组法分离复合体,并用KumadK法对土壤及各组复合体进行了研究。结果表明土壤中各组复合体的相对含量受土壤性质和成土条件制约,在以3组复合体的相对含量为坐标轴的三角坐标图中不同土壤的分布区域是特征性的,三角坐标图可以作为利用胶散复合体的组成特征进行土壤发生分类的参考依据。3组复合体的腐殖化度顺序为G0≥G1>G2,G2组的所谓"活性较低"并非其腐殖质老化而是其结合状态较紧所致。

The composition of organomineral complex of three kinds of cultivated soil colleted from Jilin Province was examined. The organomineral complex of soil samples was grouped using colloid grouping method described by Qiulin and modified by Fujiping. The soil samples and their complex was studied by Kumad K method. The results showed that the relative content of soil complex was correlated with soil properties. The humification degree of the three groups complex was G0≥G1>G2. G2 is not aged humus, its activation lower because its combine state is stringent.