The main problems and prevention measures of mine ecological restoration

4. Phytoremediation of mine heavy metal pollution

Heavy metal tolerant plants can not only withstand heavy metal toxicity, but also adapt to the extreme barren wasteland, poor soil structure and other harsh environment, and some tolerant plants can also enrich high concentrations of heavy metals, so they are widely used in the restoration of heavy metal polluted land. Considering the ecological problems caused by introduction and the adaptability of native plants to local climatic conditions, it is necessary to screen heavy metal-tolerant plants based on local conditions.

5. Restoration of mine water resources

The damage to water in mining is manifested in the impact on surface water and groundwater respectively. The pollution of surface water and groundwater can be removed by constructing constructed wetlands, which can withstand the action of plants and microorganisms. On the other hand, due to the lack of surface water caused by excessive water extraction, the groundwater level has declined, which requires appropriate water diversion, relieve the lack of water pressure, and build a water storage system to gradually solve this problem.