简要介绍了同位素和水文化学划分流量过程线的原理,综述了国内外关于流量过程线分割各种模型的发展历程及其优缺点,最初的二水源模型分割出了降水和地下水两种组分,没有考虑土壤水;三水源模型主要包括降水,地下水和土壤水,应用较广;多水源模型适用于水源补给较复杂的流域。该方法从单纯的同位素示踪发展到同位素和水文化学示踪的结合,不确定性分析的方法逐渐多样化和精确化。国内在该领域的研究较少。今后应加强不同尺度不同水文地质条件流域的研究,综合利用多种方法分割过程线。

Principle of hydrograph separation based on isotope and hydrochemical methods was introduced.It provided an overview on the development and advantages and disadvantages of all kinds of hydrograph separation models.Runoff(new water) and groundwater(old water) were separated in the initial two-component model,without considering soil water.There are runoff,groundwater,soil water in the three-component model which has a wide application;multi-component model is suited to basins that have complex water sources.It was developed from isotope tracing to the combination of isotope and hydrochemical tracing,and the uncertainty analysis was more diversificated and accurate.Domestic research about this field is seldom.Research advances of tracers and uncertainty analysis in this method were summarized.Research on different scales under different hydrogeology conditions should be strengthened in the future using different methods comprehensively.