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在阐明粟钙土发生特性的基础上,本文运用放射性碳方法断定了玄武岩熔岩台地上栗钙土有机质和腐殖质组成中胡敏酸、胡敏素的年龄。结果表明,我国栗钙土与其它国家的软土系同一时期的产物,它们形成于大约6000年以前。栗钙土有机质诸部分的年龄序列是:胡敏酸>胡敏素>土壤有机质。
On the basis of elucidating the occurrence characteristics of the travertine soil, the authors used radiocarbon method to determine the age of humic acid and humin in the organic matter and humus composition of the chestnut soil on basaltic lavas. The results show that the Chinese chestnut soil and other countries are the same period of soft soil products, they formed about 6,000 years ago. The age series of organic matter in chestnut soil are: humic acid> humin> soil organic matter.