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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (19): 142-145.doi: 10.11924/j.issn.1000-6850.2013-3189

所属专题： 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

2种氮、 磷浓度条件下湿地净化植物生理学特性比较

孔维尧   

  • 收稿日期:2013-12-05 修回日期:2014-02-25 出版日期:2014-07-05 发布日期:2014-07-05
  • 基金资助:
    吉林省科技发展计划项目 “基于净化稻田退水的人工湿地构建技术” (20100724)； 国家林业局 “948” 项目 “污染湿地净化技术引进” (2009-4-3)。

The Comparison of Physiological Characters of Different Depurative Wetland Plants in Two Nitrogen and Phosphorus Conditions

  • Received:2013-12-05 Revised:2014-02-25 Online:2014-07-05 Published:2014-07-05

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摘要： 为研究不同污染压力对净化植物的生理学影响以及不同植物之间的生理学差异，在镇赉WRSIS湿地以及鹅头泡2种氮、磷浓度条件下，比较了4种净化植物根部、茎部的总氮、总磷含量，谷氨酰胺合成酶活性以及硝酸还原酶活性的差异。研究结果表明：（1）2种条件下植物总氮、总磷含量差异不明显，植物茎部对氮、磷吸收转化强于根部；（2）氮磷浓度较高环境能提高谷氨酰胺合成酶活性，植物茎部谷氨酰胺合成酶活性一般高于根部，净化效果好的植物该酶活性较高；（3）增铵环境对硝酸还原酶活性影响不显著，植物不同部位该酶活性差别不大。因此，污染压力对植物TN、TP影响不显著，TN浓度以及谷氨酰胺合成酶活性与净化效果正相关。

关键词: 保鲜, 保鲜

Abstract: To study the physiological influence on depurative plants in different pollution pressures and physiological differences between different plants, TN, TP, GSA and NRA of roots and stems of 4 kinds depurative wetland plants were compared in two kinds of nitrogen and phosphorus conditions - the WRSIS wetland and Etou Pool. The result showed that: (1) The TN, TP of wetland plants had no significant difference between the two conditions. For nitrogen and phosphorus absorption, stems were more effective than root. (2) Higher nitrogen and phosphorus condition could enhance GSA in plants and GSA was generally higher in stem than in root. The plant with better depurative efficiency had higher GSA. (3) There was no significant influence on NRS in higher ammonium condition. The difference of NRS in different parts of plants was insignificant. Therefore, pollution pressure had no significant influence on TN and TP of plants, and TN, GSA were positive correlated with depurative efficiency.