土壤的结构形态,叫土体构型,是整个土体的各个层次的排列组合关系,把土壤作为一个整体,不仅耕作层有重要作用,同时其下各层对整个土壤肥力也有重要影响。我国农民在长期的农业生产实践中,对土体构型的作用早就有深刻的认识,把土体构型形象的称 Soil structure, called soil structure, is the permutation and combination of the whole soil. As a whole, the soil not only plays an important role in tillage, but also has important influence on the soil fertility. In the long-term practice of agricultural production, peasants in our country have had a profound understanding of the role of soil structure for a long time,