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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (36): 88-92.doi: 10.11924/j.issn.1000-6850.casb18070005

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

虎杖浮床净水能力及根叶中虎杖苷含量测定

郑 尧1, 赵志祥2, 史磊磊2, 邴旭文1, 陈家长1   

  1. 1.中国水产科学研究院淡水渔业研究中心/农业部长江下游渔业生态环境监测中心/农业部水产品质量安全环境因子风险评估实验室无锡;2.南京农业大学无锡渔业学院
  • 收稿日期:2018-07-02 修回日期:2018-11-22 接受日期:2018-08-13 出版日期:2018-12-24 发布日期:2018-12-24
  • 通讯作者: 郑 尧
  • 基金资助:
    国家科技支撑计划“池塘养殖水质净化和修复技术研究与示范”(2015BAD13B03)。

Effect of Floating Cultivation with Polygonum cuspidatum on Water Purification and Polydatin Content in Roots and Leaves

  • Received:2018-07-02 Revised:2018-11-22 Accepted:2018-08-13 Online:2018-12-24 Published:2018-12-24

摘要： 通过构建虎杖浮床对其净水能力进行研究,通过高效液相测定土生、水生长虎杖根、叶中虎杖苷含量。结果显示水生虎杖生长状况良好,粗壮浮床根越冬后第二年能正常发芽,在一定时间段内可持续使用；3.5%(虎杖重/水体重)虎杖20 d对养殖水体中TN、TP、NO3--N、NH4+-N去除率分别达到69.4%、71.3%、90.3%、74.1%,虎杖对污水各污染指标中NO3--N的吸收能力最强,其次是TN、TP、NH4+-N、NO2--N。土生虎杖根虎杖苷含量约为水中根的10倍,土生叶中虎杖苷含量比水生叶高出约50%。

关键词: 芦根, 芦根, 铁氧化物, 五价砷, 高温炭化, 吸附

Abstract: Floating bed ofPolygonum cuspidatum was constructed, the polydatin content ofP. cuspidatum in the sediment and water were measured by HPLC. The results showed thatP. cuspidatum grew normally in water, and the vigorous root inside floating bed could sprout naturally after overwintering, and could be continuously used for a certain time; the removal rate of TN, TP, NO3--N and NH4+-N of 3.5%P. cuspidatum (the total weight of P. cuspidatum /water) detected on the 20th day was 69.4% , 71.3% , 90.3% and 74.1% , respectively. P. cuspidatum had the highest removal rate of NO3--N among water-quality indexes, then was TN, TP, NH4 +-N and NO2--N. The content of polydatin in soil-growing roots was about 10 times as that in water-growing roots. The content of polydatin in soil-growing leaves was about 50% higher than that in water-growing leaves.

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