Assessing the Potential Ecological Risks of Heavy Metals in Farmland Soils in Shandong Province

Using the basic farmland of Shandong Province served as object, the potential ecological risks of Cu and Zn, Pb,Cd in the soil was evaluated by using the index of potential ecological risk and the index of geoaccumulation.Results based on the index of potential ecological risk showed that the potential ecological risk of moisture soil was at B level, indicating that the ecological damage was moderate. The potential ecological risk of brunisolic soil were at A level, indicating that the ecological damage was not serious; while the potential ecological risk of brown earth was at B level, indicating that the ecological damage was moderate. The potential ecological risk degrees of heavy metals were ranked in order of CdPbCuZn.Results based on index of geoaccumulation showed that the potential ecological risks of heavy metals were ranked in order of PbCuZnCd.