欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (14): 282-287.

所属专题： 园艺

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

河北省白菜主要栽培品种吸收累积重金属镉的特征和质量安全性研究

茹淑华   

  • 收稿日期:2010-03-12 修回日期:2010-04-19 出版日期:2010-07-20 发布日期:2010-07-20
  • 基金资助:
    河北省自然基金项目;国家“十一五”科技支撑项目

Characteristics of cadmium uptake and accumulation among Hebei major Chinese cabbages cultivars and quality safety

  • Received:2010-03-12 Revised:2010-04-19 Online:2010-07-20 Published:2010-07-20

PDF (PC)

1006

摘要： 采用土培试验研究了河北省20个白菜主要栽培品种吸收累积重金属Cd的特征和质量安全性。试验结果表明，在土壤加入同一Cd含量（1.0、5.0 mg/kg）的条件下，不同白菜品种地上部的Cd含量、吸Cd量和对Cd的富集系数均存在明显的差异(p<0.05) ，最高相差近3-4倍。按严格的蔬菜标准GB15201—94规定蔬菜中Cd最高允许限量标准0.05 mg/kg，种植白菜新北京三号、北京小杂60、太空三号和丰抗78在土壤Cd含量达到1.0 mg/kg时生产的白菜仍能符合食品安全标准。按GB2762—2005规定的叶菜类蔬菜中Cd最高允许限量标准，即使土壤Cd含量达到5.0 mg/kg时，种植的白菜新北京三号、北京小杂60和丰抗78仍是安全的。同一白菜品种的Cd富集系数是相对稳定，可以作为白菜安全生产时品种选择的重要指标。

关键词: 弯囊苔草, 弯囊苔草, 生活污水, 不同浓度, 净化效果

Abstract: The soil culture experiments were performed to study the difference of Cd uptake and accumulation among 20 Hebei major Chinese cabbages cultivars. The obvious difference was observed in Cd uptake and Cd accumulation among all the species. Maximum difference of shoot Cd concentration and Cd uptake among all Chinese cabbages were 3-4 folds under same soil Cd concentration（1.0, 5.0 mg/kg）. According to maximum allowable levels of Cd in national vegetables standards GB15201-94, the Chinese cabbage species Xinbeijing 3hao，Beijing xaioza 60，Taikong 3hao and Fengkang 78 accorded with the vegetable food security when the soil Cd concentration reached 1.0 mg/kg. According to GB2762-2005, under the maximum allowable levels of the leafy vegetables Cd standard, the Chinese cabbage species Xinbeijing 3hao，Beijing xaioza 60 and Fengkang 78 still accorded with the vegetable food security when the soil Cd concentration reached 5.0 mg/kg,. The enrichment factor of the same cabbage varieties is relatively stable. It can be used as screening an important indicator of cabbage varieties on Cd accumulation capacity .