科学、便捷的获得污染物在地下水中运移的时空变化规律,不仅有利于地下水污染防治,还能为区域规划提供科学可靠的依据。以四川省德阳平原地区为例,以胭脂红为示踪剂,通过野外径向弥散试验,采用标准曲线法求解弥散系数,并通过Matlab编程计算实测浓度与标准曲线浓度之间的误差,得到纵向弥散系数为0.53m2/h,均方根误差为0.066 3。可见获得的弥散系数较为合理,弥散试验结果可信。 Scientifically and conveniently obtaining the temporal and spatial variation of pollutant transport in groundwater is not only conducive to the prevention and control of groundwater pollution, but also provides a scientific and reliable basis for regional planning. Taking Deyang plains in Sichuan Province as an example, using carmine as tracer, the dispersion coefficient was calculated by the standard curve method through the field radial dispersion test, and the error between the measured concentration and the standard curve concentration was calculated by Matlab program to obtain the vertical The dispersion coefficient is 0.53m2 / h, and the root mean square error is 0.0663. Obvious diffusion coefficient obtained is reasonable, the dispersion test credible.