Research progress on heavy metal contaminated soil phytoremediation enhanced by combining biochar and arbuscular mycorrhizal fungi
Soil heavy metal contamination seriously affects the quality of agricultural products,and threatens human health,which is one of the global environmental issues.Biochar can effectively improve the soil environment and reduce the bioavailability of heavy metals,so it has received widespread attention in the remediation of heavy metal contaminated soil.Arbuscular mycorrhizal fungi(AMF)can form symbiotic relationship with most plants,enhance their capacity of nutrient absorption and enhance their heavy metal tolerance.Combined application of biochar and AMF has synergistic effects in improving soil nutrient content,solidifying heavy metals,and promoting plant growth,which also has shown great research potential in remediating heavy metal contaminated soils.This paper summarized the mechanisms of combined biochar and AMF for remediation of soil heavy metal contamination in terms of improving soil quality and promoting plant growth,and then looked forward to its future research on genomics mechanism and practical application.This paper would provide theoretical basis for both remediation of heavy metal contaminated soil and improvement of soil ecosystem quality.
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