In order to understand the current status of heavy metal enrichment in wetland soils,explore the solutions,which will provide a scientific basis for pollution prevention and control measures,through the system investigation,sampling,testing and research the Guanzhuang lake wetland soil in three different soil types(natural soil,seasonal soil,constant flooding soil) 0 ~ 20 cm soil layer of copper(Cu),zinc(zinc),lead(Pb),cadmium(Cd),chromium(Cr) and the content of heavy metal.Through Hakanson potential ecological hazard index method,pollution load index,heavy metal pollution of wetland soil and ...