Soil heavy metal pollution is the main factor that causes the decline of ecological environment quality,the excessive content of heavy metals in crops and the harm to human health.Phytoremediation is one of the important ways to control heavy metals,which has both ecological and economic benefits.However,most plant species have limited remediation ability and cannot achieve good heavy metal removal effect.In contrast,forage grass is easy to cultivate,with large biomass and short growth cycle.It shows strong remediation ability in the treatment of heavy metal contaminated soil,and has good application prospect and development value.Based on the current situation of heavy metal contaminated soil remediation by herbage plants,the response characteristics of herbage plants under heavy metal stress,the enrichment effect of heavy metals and the remediation mechanism were systematically expounded,aiming to provide reference for the efficient use of herbage plants for heavy metal contaminated soil treatment.
关键词
牧草/重金属污染/修复机制/影响因素/强化措施
Key words
Forage grass/Heavy metal pollution/Phytoremediation mechanism/Influencing factor/Reinforced method
维普
万方数据