Effect of Earthworm,Mycorrhizal Fungi and Combined Action on Phytoremediation under Pb~(2+) and Cd~(2+) Stress

The pot experiment was conducted to study the effect of earthworm,mycorrhizal fungi and combined action on phytoremediation of yellow soil from forest land under Pb2+ and Cd2+ stress.The results showed that earthworm could significantly increase above-ground biomass,the inoculated mycorrhizal fungi could increase accumulation concentration of heavy metals in plants,the total heavy metal amount absorbed by aerial part of plant was the highest under the combined action of earthworm and mycorrhizal fungi so the soil phytoremediation rate of the combined action was the higtest,which can provide certain scientific basis for research and application of soil phytoremediation.