聚合上体是具有系统分类单元特性的单个土体的聚积体。土壤景观则是景观中聚合土体的聚积体。土壤制图单元是代表聚合土体还是代表土壤景观,取决于图幅的比例尺。可以把聚合土体和土壤景观看成是适于作为单独的开放体系来研究的一种实体。 Polymerization on the body is a system of taxonomic characteristics of a single soil aggregates. Soil landscape is the aggregates of aggregated soil in the landscape. Whether the soil mapping unit represents polymerized soil or represents the landscape of the soil depends on the scale of the map. The aggregated soil and soil landscape can be viewed as an entity that is suitable for studying as a separate open system.