关于在《中国土壤系统分类(首次方案)》中增设海积土土类的建议

The Propsoal for Supplementing a Soil Group-Coast Deposit Soil in Chinese Soil Taxonomic Classification (1st proposal)

论述海积土形成、分布,形态特征和理化性状。分析以前海积土分类中存在问题。根据《中国土壤系统分类(首次方案)》中的分类指标,建议在初育土纲、土质初育土亚纲中增设海积土土类,然后根据土壤形态特征和理化性状的不同而划分为四个亚类。

On the basis of discussing the formation, distribution, morphological peculiarities, physical and chemical specificities of coast deposit soil; the problems of the former classification of coast deposit soft are analysed and a new soft group--coast deposit soil is suggested to supplement into the suborder of Regosic primarosols, the order of Primarosols according to the classification indexes of Chinese Soil Taxonomic Classification. Then, coast deposit soil can be clsaaified as four subgroups according to the differences of morphological peculiarities, physical and chemical specificities.