中文摘要：

过去十几年来,非传统稳定同位素在地球表生环境中的应用得到广泛关注.土壤处于地球表层特殊的空间位置,与其他各圈层不间断地进行物质和能量交换.结合已有的相关研究,本文对非传统稳定同位素在土壤中的分馏行为和重要应用潜力进行了论述,重点以Mg,Fe,Si和Hg等元素同位素为代表,从风化和成土过程、营养元素在植物-土壤之间的循环及重金属污染三个方向阐述土壤基础研究存在的重要科学问题.简要总结了近几年的研究现状,指出目前土壤中非传统稳定同位素值得深入研究的方向.非传统稳定同位素在土壤研究中的应用,是将稳定同位素地球化学与土壤学、环境生态学等学科交叉与融合的典型范例,是土壤学科发展的一个重要趋势。

英文摘要：

Non-traditional stable isotopes have been wlclely appneu tu t environment during the last ten years. In the critical zone, soils continuously exchange materials and energy with the atmosphere and lithosphere with the aid of water and biota. A brief review was presented of the fractionation and potential applications of non-traditional stable isotope in soil studies. Taking Mg, Fe, Si and Hg isotope systematics as examples, a few important scientific problems of soil research were discussed, including weathering and pedogenesis, the cycle of nutrient elements between plants and soils, and heavy metal pollution. The current progresses of non-traditional stable isotopes in soil research was briefly reviewed and future directions in this field were outlined. The application of non-traditional stable isotopes in soil is a nice example of the multi-disciplinary studies combining stable isotope geochemistry, soil science, and environmental ecology.