可通过微生物的氧化还原作用、生物吸附富集和溶解作用，达到修复重金属污染土壤的目的。
The soil pollution by heavy metals are remedied by oxidation, reduction, bioadsorption and dissolution of soil microorganisms.
根系分泌物可通过溶解、螯合、还原等作用活化土壤重金属，提高重金属的植物有效性，或固定和钝化重金属，降低重金属的移动性。
Root exudates could activate heavy metals in soil, and enhance their bio-availability by dissolving, chelating, deoxidizing, decrease migration of heavy metals by fixating and inactivating.
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