It is shown from the results that moisture in shallow unsaturated loess moved obviously down and up as well as was poor in the semi-arid area.

Study on the migration and transformation of organic pollutants in vadose zone;

Modeling study on transport law of leachate pollutant COD in vadose zones;

An experimental study on residual saturation of diesel oil in vadose zone;

Law of Vertical transfer of fly ash water in aeration zone of soil;

Biodegradability of heavy-oils in soil of an aeration zone;

A new technique of treatment and utilization of residential area rainwater was developed based on the characteristics of abundant soil water within aeration zone in southern cities, which can treat and utilize rainwater by means of primary precipitation and secondary biochemical treatment, to coo.

The adsorption of trichlorinated hydrocarbon in the unsaturated zone;

Application of water solute coupled model to transportation of chemicals and pesticides on unsaturated zone pollution;

Lithologic characteristics of the unsaturated zone and its impact on adsorption and degradation of pesticide in the first grade terrace of Songhua River;

Simulation experiments and forecast of migration and transformation of pollutants of leathate in aerated zone;

Experimental study on effect of immobile water on solute transport in aerated zone of loess;

Numerical modeling of ~(85)Sr migration in aerated zone with the characteristic of double peak concentration distribu-tion;