Maps of chemical-physical properties – Percentage content of organic carbon in regional soils between 0-30 cm – third edition

The Charter of the percentage content of organic carbon in regional soils, with reference to the first 30 cm of soil, provides an estimate of the average percentage content of CO in a given territorial area due to the different soil types present therein. The representation of the territory takes place through a raster with pixels with a side of 100 m. Although the card is represented by classes, the information accessed, by querying the single cell, is related to the specific content of CO (expressed as % by weight). The value refers to the layer 0-30 cm and has been attributed to the cell through a geostatistic analysis in the plain and Digital Soil Mapping in the Apennines.区域土壤有机碳占比专题图谱（以土壤表层0-30厘米为研究深度），基于研究区域内现存的不同土壤类型，对该特定地域范围内的平均有机碳（Organic Carbon, OC）重量百分比含量进行估算。该研究区域的空间表达采用边长为100米的栅格像素实现。尽管该专题图以分类形式呈现，但通过查询单个栅格单元所获取的信息，却与具体的有机碳含量相关，其以重量百分比表示。该数值对应0-30厘米土层，其在平原区通过地统计分析、在亚平宁山区通过数字土壤制图（Digital Soil Mapping, DSM）的方法赋值至对应栅格单元。