Soils of Brittany — Estuaries: Map of soils at 1/25000

Soil map of estuaries at 1/25000. The coding corresponds to code 4 soil criteria of the Armoricain Massif (see online resources). The fields of the successful table are: — SUB: Parent material(s) from which the soil develops — HYD: Hydromorphic class, 0 (well drained soil) to 9 (extremely hydromorphic soil) — TYPE: Profile development defined from the succession of horizons — TEACHER: Soil depth, classified from 1 (very thick soils) to 6 (surface soils) — CODE4C: code 4 criteria derived from the concatenation of the previous fields. The values taken by the different fields for each entity are detailed in the 4 criteria method (see online resources). — UTS: Soil Typological Unit number from the Regional Pedological Reference Office of Brittany. UTS numbers are not given.1:25000比例尺河口土壤图。 其编码对应阿莫里坎地块（Armorican Massif）的4类土壤分类标准（详见在线资源）。 本有效数据表的字段如下： — SUB：成土母质，即土壤发育所依托的母质材料 — HYD：水文潜育等级，取值范围为0（排水良好土壤）至9（极端潜育化土壤） — TYPE：由发生层序列定义的土壤剖面发育类型 — TEACHER：土壤深度分级，分级标准为1（极厚层土壤）至6（表层土壤） — CODE4C：由前述字段拼接得到的4类分类标准编码 各实体各字段的具体取值详见4类分类标准方法说明（详见在线资源）。 — UTS：布列塔尼区域土壤学参考办公室（Regional Pedological Reference Office of Brittany）划定的土壤类型单元编号 本次未提供UTS编号。