Soil Surface Carbonate

Surface carbonate often occurs as finely divided particles which reduce nutrient availability to plants and retard the degradation of some herbicides. Mapping shows the proportion of land with calcareous surface soils, while detailed proportion data are supplied for calculating respective areas of each surface carbonate class (spatial data statistics).地表碳酸盐（Surface carbonate）通常以细分散颗粒形式赋存，可降低植物可获取的养分有效性，同时延缓部分除草剂的降解过程。本数据集配套的制图可展示区域内钙质地表土壤的占比情况，同时附带详细占比数据，用于计算各类地表碳酸盐分类的对应面积（空间数据统计）。