Salinity 0-50 plain 1st appr.

It represents a useful basic cartography to address environmental and agronomic problems. The salinity chart describes the salinity status of soils between 0-50 cm. It is a first representation derived from geostatistical analysis based on precise data collected in the Soil Database. The representation of the territory takes place through a knitted structure consisting of cells with a side of 1 Km. The card contains information about: the salinity class according to the USDA Soil Survey Manual (Richards, 1954); the electrical conductivity value of the saturated paste extract (ECe in dSm-1) estimated through geostatistical analysis; the reliability of the estimate, or the degree of reliability of the value provided that allows a correct interpretation of the Charter.该数据集为解决环境与农艺领域的相关问题提供了实用的基础制图参考。该盐度图刻画了0至50厘米深度土层的盐度状况，是依托土壤数据库采集的精准数据，通过地质统计学分析生成的首批可视化成果。该地域的可视化呈现采用边长为1千米的单元格构成的网格结构实现。该图件包含以下信息：依据美国农业部（United States Department of Agriculture, USDA）《土壤调查手册》（Richards, 1954）划定的盐度等级；通过地质统计学分析估算得到的饱和糊状浸提液电导率（electrical conductivity of the saturated paste extract, ECe）值，单位为分西门子每米（dSm⁻¹）；以及估算结果的可靠性，即保障该盐度图正确解译的数值可靠程度。