镉低积累作物筛选及其与超富集植物间套作应用进展

Advances on screening of Cd low-accumulation crops and its intercropping with hyperaccumulator

我国农业用地镉污染严重,对农作物安全生产带来巨大隐患,被政府部门和诸多科研人员所重视。在确保农作物安全生产和改善农业生态环境的前提下,筛选并推广具有低积累镉功能的农作物品种,以及开展镉超标农田植物修复技术等研究,是我国农业高效、安全和可持续发展的迫切需要。介绍了目前我国耕地镉污染情况,探讨了镉低积累农作物的研究意义及筛选进展,报道了镉超富集植物筛选工作,阐述了利用镉低积累作物与超富集植物间套作应用于镉污染耕地研究状况。针对存在问题提出了建立基于有效性的土壤镉浸提态评价指标、加强镉低积累农作物筛选力度及完善镉低积累农作物与超富集植物间套作相关技术研究等对策建议。

It is serious for cadmium pollution in China＇s agricultural land,which have been given attention by the government and many researchers due to huge potential security problems of crop production. Under the premise of ensuring crops safety production and improving agricultural ecological environment,the screening and popularizing of Cd low-accumulation crops and applying phytoremediation technology are the urgent need for agricultural efficiency,safety and sustainable development in China. In this paper,the current farmland soil cadmium pollution situation in our country was summarized,and the research significance of Cd low-accumulation crops and screening progress was discussed. Meanwhile,the cadmium hyperaccumulation plants screening work was reported. Subsequently,the application status on intercropping for Cd low-accumulation crops and hyperaccumulator was reviewed. Finally,the paper put forward three suggestions,it should establish evaluation index based on the effectiveness of soil cadmium,and strengthen the screening of Cd low-accumulation crops,and improve the technology research related the intercropping between the Cd low-accumulation crops and hyperaccumulation plants.