广西土种志——基于全国第二次土壤普查的数据集

A database of soil types in Guangxi:Based on the Second National Soil Survey

本数据集来源于1990年广西科学技术出版社出版的《广西土种志》,它汇编了广西87个县市主要土种的分布、面积、主要性状、典型剖面、生产性能及理化分析数据,是广西第二次土壤普查系列成果之一。在进行系列标准规范化工作的基础上,构造了一个包括地点与土壤类型分布关系和中国土壤发生分类的分类关系的E-R数据模型,形成了具有15个土类、28个亚类、276个土种、269个典型剖面的930个发生层及物理化学性质的数据产品。本数据集可被广泛用于土地质量评估、环境效应研究、土壤碳储量研究等,对土壤资源的合理利用具有非常重要的指导意义。

The database is processed from Soil Type Database of Guangxi published in 1990 by Guangxi Science and Technology Press which is based on the Second National Soil Survey.It compiles the distribution,area,main characters,typical profiles,production performance,physico-chemical analysis of the major soil types in 87 counties and cities of Guangxi.After a series of standardization,the study constructs an E-R data model which incorporated relations between location and soil type,and classification relations according to Genetic Soil Classification of China.It results in a data product which contains 15 soil groups,28 subgroups,276 major soil types,269 typical profiles,930 soil horizons and theirs physico-chemical properties.The database can be widely used for land degradation assessments,environmental impact studies,soil carbon reserves studies,or in guiding agricultural production.