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从溶质运移的基本方程出发，较系统地论述了国内外对非饱和土壤水动力弥散系数的测定方法，并对各种方法作了述评。
Proceeding from the basic equations of solute transport, the methods for the determination of hydrodynamic dispersion coefficient in unsaturated soils at home and abroad are systematically discussed, and various methods are reviewed.