地下水研究中地下水年龄的应用分析

Application and Analysis of Groundwater Age in Groundwater Study

地下水年龄主要是指水在含水层中停留的时间,即大气降水或地表水从进入地下径流时起,一直持续到其在采样点出现时止,在这一全过程中,水在透水岩石的孔隙和裂隙中停留的有效时间。由于地下水年龄实际测定方法和手段不同。因此,其又分为相对年龄与绝对年龄两种。地下水年龄可准确反映地下水实际运动和溶质迁移规律,在近年来的地下水研究过程中,诸多学者都通过地下水年龄这一指标,对地下水运动形式和迁移规律进行研究。结果表明,地下水绝对年龄不仅会受地下水混合作用影响,还会受气-水-岩等相关自然因素影响。与此同时,其也会受人类社会实践活动等因素影响。文章通过对地下水研究中的地下水年龄应用情况进行论述,以此找到地下水水质运移规律,从而为我国地下水科学与工程学研究奠定基础。

The age of groundwater may reflect correctly the actual movement and solute transport law about groundwater, in recent years, most scholars researched the type and migration of groundwater movement through the index of groundwater age during the period of groundwater study. The results show that the absolute age of groundwater not only will be impacted by the mixed groundwater but also impacted by relevant natural factors of atmosphere-water-rock, meanwhile, be impacted by the factors of social practice of human beings. Therefore, the paper found the mitigation of groundwater quality by discussing the application of groundwater age in the groundwater research to lay the foundation of Chinese groundwater science and engineering science.