【摘要】 在太原地区测试了240个地下水、地表水和大气降水的~3H、~14C和~13C值。结果表明研究区有三维地下水流动系统,岩溶地下水补给、径流、排泄区应选用不同的地下水混合模型。通过年轻水混入校正、死碳稀释校正和~14C初始浓度变化校正,求得了研究区内13个点上的地下水年龄,并据此计算了地下水流速和径流量。更多还原

【Abstract】 240 values of tritium, carbon-14 and carbon-13 of groundwater, surface water and precipitation have been measured for the Taiyuan region. The results tend to show that there is a 3 -dimensional groundwater flow system in the studied region. Different mixed groundwater models should be selected for the areas of recharge runoff and discharge of karst ground-water. Groundwater ages at 13 sites in the studied region were obtained after the corrections for mixing of young water, for dilution by dead carbon, and for the variation in initial carbon-14 concentration. The velocity of groundwater flow and the runoff were determined on the basis of the obtained groundwater ages.更多还原