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一、引言土壤肥力分类系统(FCC)是作为弥补土壤分类学科分支与土壤肥力之间空档的一种尝试而研究制定的。作为一个技术性土壤分类体系,FCC的目标是放在对于自然土壤分类系统的特定利用上。所谓自然土壤分类系统,即指象土壤系统分类(土壤调查局,1975)或FAO-Unesco世界土壤图图例这样一些主要作为土壤特性记录的分类系统。想直接依靠自然土壤的分类系统来解决特定的利用上的问题是比较困难的,因为在自然土壤的分类系统中,适
I. INTRODUCTION The Soil Fertility Classification System (FCC) was developed as an attempt to offset the gap between soil-taxonomy branches and soil fertility. As a technical soil classification system, the FCC’s goal is to focus on the specific use of natural soil classification systems. The so-called natural soil classification system refers to a classification system that primarily serves as a record of soil properties, such as the Soil System Classification (Soil Bureau, 1975) or the FAO-Unesco World Soil Map. It is difficult to solve the problem of specific utilization by directly relying on the classification system of natural soils because in the classification system of natural soils,