Water pollutant migration mechanism is felt out by combining water environmental quality evaluation and water pollutant transport simulation, thus making the preventive measures to water pollution.

通过水环境质量评价和水体污染物运移模拟的结合，摸清水中污染物的运移机理，从而制定有效的水污染防治措施。

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The finding of dispersion parameter is a prerequisite to recognize correctly the pollutant migration of underground water and its control.

弥散参数的求得，是正确认识地下水污染运移及对其控制的前提。

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