论文部分内容阅读
为了研究吉林东部暗棕壤在中国土壤系统分类中的归属,采用当前国际土壤分类的主流的土壤系统分类法,以吉林省东部暗棕壤的5个典型剖面为研究对象,通过野外剖面形态特征调查、剖面描述、理化性质分析,研究了土壤的发生特性,确定土体的诊断层与诊断特征,按照《中国土壤系统分类检索(第3版)》的标准,初步确定吉林东部暗棕壤在中国土壤系统分类中归为淋溶土和雏形土2个土纲,冷凉淋溶土和湿润雏形土2个亚纲。
In order to study the attribution of dark brown soil in eastern China to the taxonomy of soil systems in China, five mainstream sections of dark brown soil in eastern Jilin Province were selected as the main soil taxonomic methods of current international soil classification. Investigation, section description, physical and chemical properties analysis, study of the occurrence characteristics of soil, determine the diagnostic layer and diagnostic features of soil, according to the “soil classification system of China (3rd edition)” standard, initially determine the dark brown soil in eastern Jilin In the Chinese soil system classification, there are 2 sublines of leaching soil and rudimentary soil, 2 leaching clays of cool and leaching soil and moist rudimentary soil.