蒸发过程中饱和土壤水稳定同位素运移规律浅析
Study of Stable Isotope Model for Saturated Soil Water Movement in the Condition of Evaporation
作者：王永森(1.河海大学 水文水资源与水利工程科学国家重点实验室,江苏 南京210098;2.河海大学 水文水资源学院,江苏 南京210098;)；陈建生(河海大学 科学研究院,江苏 南京210098)
Author：Wang Yongsen(1. State Key Lab. of Hydrologywater Resources and Hydraulic Eng.,Hohai Univ.,Nanjing 210098,China；2.College of Hydrology and Water Resource,Hohai Univ., Nanjing 210098,China)；Chen Jiansheng(Research Inst. of Sci. and Technol., Hohai Univ., Nanjing 210098,China)
收稿日期：2008-10-20 年卷（期）页码：2010,42(1):10-13
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：饱和带土壤水；稳定同位素；蒸发；微元模型
Key words：saturated soil water; stable isotope; differential element method; model
基金项目：国家自然科学基金资助项目(50579017)
中文摘要
基于Fick定律和质量守恒定律推导了饱和土壤水在蒸发过程中的稳定同位素微分方程模型，分析了饱和土壤水的边界条件，给出了解析解，为数值模拟蒸发、蒸发过程中土壤水的稳定同位素组成变化提供了确定性的数学基础，对土壤水分运动以及土壤水稳定同位素的研究具有一定的理论意义。
英文摘要
The differential equation model of stable isotope composition in saturated soil water at evaporation condition based on the Fick law and the conservation of mass law was proposed. The boundary condition and initial condition were analyzed, and the analytic solution of the differential equation model was obtained. The model provides deterministic mathematic foundation for numerical simulation of saturated soil water stable isotope movement in the condition of evaporation, and are of important theoretical significance for soil water movement.
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