福建九龙江下游地区土壤地球化学分类

本文以福建省九龙江下游的长泰、漳州、龙海三市县为实例，利用多目标区域地球化学调查资料，探讨了土壤地球化学分类的方法，提出了分类命名方案和诊断标准，将本区土壤划分为铁铝土、硅铝土、铝硅土、硅土4个大类，其中硅铝土又分为一般硅铝土、铁质硅铝土、钾质硅铝土、硫铁质硅铝土4个亚类，调查了各类(硅土除外)的52种元素平均含量和农业利用情况。

Geochemical classification of soils in the downstream area of the Jiulong River, Fujian Province

Take for example the geochemistry of Changtai, Zhangzhou and Longhai in the downstream area of the Jiulong River, Fujian, by using the data of multi-target regional geochemical investigation, this paper discusses the method of geochemical classification of soils and proposes a scheme of classification and nomenclature and diagnostic criteria. The soils in the area is divided into four major classes: Fe-Al soil, Si-Al soil, Al-Si soil and siliceous soil, of which Si-Al soil is further divided into four subclasses: ordinary Si-Al soil, ferruginous Si-Al soil, potassic Si-Al soil and pyritic Si-Al soil. The average contents of 52 elements of various soils (siliceous soil excluded) and their uses in agriculture are investigated.