Chemical-physical properties maps - Soil weaving of the Emilia-Romagna plain - layer 0-30 cm, scale 1:50,000

The weaving map represents the area distribution of the particle size fractions classified according to the USDA methodology (International Standard, ref. U.S. Department of Agriculture). Each cell is assigned a % value of sand, silt, clay, skeleton and USDA textile class. Each parameter shall be accompanied by a reliability assessment of the estimated value. The representation of the territory takes place through a mesh structure consisting of cells with a side of 500 m. The attribution of values to the cell is the result of a geostatistical analysis applied to the Plain Soil Map (scale 1:50,000) and refers to the first 30 cm of soil.本土壤织构分布图展示了依据美国农业部（USDA，United States Department of Agriculture）制定的国际标准方法所划分的土壤颗粒粒级的面积分布。每个网格单元均被赋予砂粒、粉粒、黏粒、砾石的百分占比，以及USDA土壤质地类别数值。每项参数均附带对应估算值的可靠性评估结果。该研究区域通过由边长为500米的网格单元构成的网格结构进行可视化表达。网格单元的数值赋值基于对1:50,000比例尺平原土壤图开展的地统计分析，且表征的是土壤表层0~30厘米的土层属性。