TRANSFER OF HEAVY METALS THROUGH SOIL-PLANT SYSTEM AND ITS INFLUENCE ON THE GROWTH OF RICE
土壤-水稻体系中污染重金属的迁移及其对水稻的影响

The uptake of soil Pb, Cd, Cu and Zn by rice were studied using pot experiments in greenhouse and the results showed that the transfer of the heavy metals was dependent on the first hydrolysis constant of the eleme-nts, the interaction among the elements, the dose applied and the affinity of the elements to the soils, which are related to the adsorption isotherm. The relation between the ionic impulsion and the grain yield implied that the former might be used as an indicator for soil heavy metals pollution management.