Effects of landscape restoration on migration of lead and cadmium at an abandoned mine site

Abandoned lead and zinc (Pb/Zn) mining wastes represent a serious environmental hazard because heavy metals (e.g., Pb Cd) are continuously released into the environment, threatening ecological human health. This study was devoted to investigate stability of Cd in soil at an abandoned Pb/Zn mine site after landscape restoration by five-year monitoring. Chemical extraction applied measure distribution metals. The results showed that bioavailability increased, during accumulation organic matter about seven g/kg, pH value decreased from 4.82 4.44. Soil significantly affected Long-term afforestation can continuous acidification. There significant negative correlation between carbonate-bound state pH. With decrease pH, decomposition carbonates promoted, relative abundances associated with fulvic humic complex increased 0.54% 3.17%, respectively. different migration behavior pine. Compared Cd, more concentrated roots. These have important implications for long-term sustainable management forests formed phytostabilization contaminated soil.