摘要
为了对Cd污染农田实施农业生态整治及安全高效利用 ,将Cd污染土壤作为一种特殊的资源 ,在Cd污染农田建植绿化草坪繁育基地是近年提出的新方法。Cd污染地各种草坪草富集Cd含量的结果表明 ,结缕草是对污染地中Cd的摄取富集量最低的草坪品种 ,进行异地栽植 ,不会造成二次污染 ,并改变了土壤层中Cd的浓度构成。通过采用草坪生产模式 ,消除食物链中Cd的危害 。
We take the Cd polluted farmland soil as a special resource in order to implement agro-ecological regulation and safe high efficient utilization of farmland polluted by cadmium. It is a new way to construct a propagation base of evanescence grassland on farmland polluted by cadmium. The result of Cd accumulated content in different lawn grass shows that the Zoysia japonica is a kind of grass which has weak capability of absorption and accumulation for Cd of polluted farmland, taking plant in different places, and it doesn't make secondary pollution, and it changed the consistency of Cd in soil. It got rid of Cd pollution in food chain by selecting a grassland production model, and discovers a new approach to bioremediation and exploitation utilization on heavy metal polluted farmland.
出处
《植物研究》
CAS
CSCD
北大核心
2002年第4期467-472,共6页
Bulletin of Botanical Research
