中国湿地土壤分类系统的初步探讨

在对湿地土壤分类研究进展分析的基础上,按照湿地土壤的独特规律,参考中国第二次土壤普查的分类标准、美国土壤分类标准和中国最新的土壤系统分类的标准,对中国湿地土壤类型进行了重新划分。根据成土过程、人类活动、有机物的含量、土壤化学物质含量、地貌条件等因素,将中国湿地土壤划分为土纲、亚纲、土类、亚类、土族、土系6个级别。对中国湿地土壤分类的研究,有利于湿地科学研究中对土壤的认识有统一的标准,同时对土壤分类学也具有重要意义。

Primary Classification of Chinese Wetland Soils

Soil classification is a basic job in soil science. Compared with land soils and hydromorphic soils, wetland soils are very particular because of their special physical and chemical properties. The research of wetland soil classification is very nesscessary. Based on the analysis on the research advance of wetland soil classification and the unique development rules of wetland soil, and consulting the classification standards of the secondary soil investigation of Chinese soils, the classification standards of America soils, and up-to-date standards of Chinese Soil Taxonomy, a new soil classification method was put forward in this paper in which soil-forming progress, the influence of human activities, the content of organic matter, the content of soil chemical elements, and topographic condition were chosen as classification indicators. All wetland soils in China were classified into 6 grades, for example, Order, Suborder, Group, Subgroup, Family, and Series. The study is beneficial to the establishment of uniform standards of wetland soil research, and also improves the development of soil classification.