This paper summarizes the crucial problems to be solved in herbs production on the basis of systematic analysis of applying high-efficiency irrigation and water-fertilizer coupling techniques in the planting of Chinese herbs.

Considering the current status of irrigation and drainage systems in China,the W.

Elementary reflection is that the effect of the well water irrigation and reclaimed water irrigation to the heavy metals accumulation in plant is lest.

Based on the experiment studies,the study on water and solute transport in sandy soil under reclaimed water irrigation was made,The result can give some reference for the effect on soil solute transport and soil environment under micro-contaminated water irrigation.

Effects of effluent irrigation on the variation of chemical element concentrations of soil extractions under field conditions;

This paper analysed heavy metal content in soil samples of different depth from the eastern,analyzed the relation between the concentration change of heavy metals in soil,provided the scientific evidences for effluent irrigation,solving the problems of water in effluent irrigation areas and environmental impact assessment.

We analyzed and evaluated contents of several heavy metals(Cr,,Cu,Cd,Pb)in soil samples at different depths collected from eastern Inner Mongolia receiving effluent irrigation.