Metal mineral resources in China are rich. The heavy metal pollution to the soil caused by mineral development is large and wide. Tongling City of Anhui Province is one of the main mining cities in China , the tailings,slag and smelting of the polymetallic deposits, such as Cu and Au, has become an important source of the heavy metal pollution to the soil. Heavy metal pollution to the soil has some characteristics such as concealed, cumulative, regional, irreversible and long-term characteristic, wh...