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一、前言土壤区划是根据土壤生物气候特点、土壤生物地貌特点及农业生产特点,按照土壤地带性(緯度地带性、經度地带性或相性、垂直地带性)的原則,研究土壤分布的規律性,探討其相似性与差异性,进而划分出各级不同的区域单位,同时指出各区域单位的环境条件,主要土壤性状,存在問題及利用改良意見,为农业生产服务。因之土壤区划对于理論和生产实践具有双重意义。
I. Introduction Soil zoning is based on the characteristics of soil bio-climatic characteristics, soil biogeomorphology and agricultural production, according to the principles of soil zonality (latitude, longitude zonal or facies, vertical zonality) to study the regularity of soil distribution, Explore the similarities and differences, and then divide the different levels of regional units. At the same time, it points out the environmental conditions, the main soil properties, the existing problems and the use of improved opinions of the various regional units to serve agricultural production. Soil division therefore has dual meanings for both theory and production practice.