全国土壤区划研究的意义与进展

土壤区划和土壤分类是两个不同的概念。土壤分类研究的对象是土壤个体,主要研究土壤的形成条件,形成过程和属性,从而划分土壤类型;土壤区划研究的对象是土壤群体,主要研究一个自然单元内多种土壤并存的组合特点,以及这个地区在土壤利用改良方面和经营管理上的独特性,从而对土壤群体进行地域划分。

THE SIGNIFICANCE AND PROGRESS OF THE STUDY OF CHINESE SOIL REGIONIZATION

There are miscellaneous kinds of soil group and soil associations with large areas in China. Jn order to use soil resources fully and propery, we have to study soil regionization in the whole China.Looking back on it, we can divide our study into several stages.(1)primary stage-1930's to 1940's.(2)progressed stage-from the begining of 1950's to the mid-1960's,(3)stagnated stage-from mid-1960's to mid-1970's,(4)New developing stage-from mid-1970's to the present.The study of sail regionization in whole China provided the scientific foundation for natural regionization and agricultural regionization and brougt about a great advance in agricultural production. The theory about soil regionization which has developed in the past years,couldn't fit the development of modern agriculture. Much remains to be done.we shoud pay more attention to the study of soil regionjzation jn the whole China.