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为保持土壤普查成果综合图件的清晰度和适当的载负内容,在县、地、省的逐级汇总中,必须通过制图综合,把制图内容经过概括或简化,以便以总的概念代替局部的概念。首先应确定图斑的最小限定面积,对小于限定面积的图斑进行综合;交错分布图斑则以复区表示,综合时尽可能考虑到地貌、母质和利用方式,综合图应更能反映土壤分布的宏观规律。制图综合指标主要环节是确制定图单元,它与土壤分类单元既有连系又不能混淆。制图综合是通过已经定性和定位的图斑密度和大小来体现编图质量的一种手段,具体方法是先归并后概括。
In order to maintain the clarity of the integrated map of soil census results and appropriate load bearing contents, at the level-by-level aggregation of counties, prefectures and provinces, the cartographic contents must be generalized or simplified through cartographic synthesis so as to replace the local the concept of. First of all, the minimum area of the speckle should be determined and the speckles smaller than the defined area should be integrated. The staggered distribution of the speckle is indicated by the double zone. When considering the landscape, the parent material and the utilization mode, the integrated map should reflect the soil Distribution of the macro laws. The main link of cartographic general indicators is to establish the map unit, which is not only confused with soil taxa. Cartographic synthesis is through the qualitative and positioning of the map density and size of the map to reflect the quality of a means, the specific method is summarized and summarized.