Advance in the study on recovery and remediation of heavy metals pollution in soil

Soil pollution of heavy metals is become serious with the development of the social produce,and the heavy metals in soil are the potential threat to the plant and human body.The principle of recovery and remediation of heavy metals pollution in soil is to clear or to change the fraction transformations of heavy metals and which can decrease the mobility and the availability of heavy metals in soil.According to the soil characteristic and the heavy metals fraction transformations,the methods of recovery and remediation of heavy metals pollution in soil are phychem-engineering,agro-chemistry regulate and control and biological restoration.The paper expound the merits,shortcomings and applicability,and look forward to the methods of control and recovery of heavy metals pollution in soil.