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由于不同植物 (植被 )有机体具有不同的碳稳定性同位素特征 ,因而土壤和沉积物有机碳的碳稳定性同位素表现出植被的标示作用 (ｐｌａｎｔｓｉｇｎａｔｕｒｅ) [1 ] 。近 1 0多年来 ,运用碳稳定性同位素研究土壤有机碳的分布及其变化以及评价植物 (作物 )对土壤有机碳变化的研究
As different plant (vegetation) organisms have different carbon stable isotopic characteristics, the carbon stable isotopes of organic carbon in soils and sediments exhibit plantignature [1]. In the recent 10 years, the use of carbon stable isotopes to study the distribution of soil organic carbon and its changes as well as evaluation of plant (crop) changes of soil organic carbon