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生态学杂志 ›› 2004, Vol. ›› Issue (6): 15-18.

• 研究报告 • 上一篇    下一篇

白骨壤模拟湿地系统中氮的分配、循环及其净化效应

陈桂葵1, 陈桂珠2   

  1. 1. 华南农业大学农学院, 广州, 510642;
    2. 中山大学环境科学研究所, 广州, 510275
  • 收稿日期:2003-11-24 修回日期:2004-03-02 出版日期:2004-12-10
  • 通讯作者: 陈桂珠
  • 基金资助:
    国家自然科学基金资助项目(39470151)

Allocation,circulation and purification effect of nutrient pollutant N in synthetic wastewater in Avicennia marina simulated wetland system

CHEN Guikui1, CHEN Guizhu2   

  1. 1. College of Agriculture, South China Agricultural University, Guangzhou 510642, China;
    2. Institute of Environmental Science, Zhongshan University, Guangzhou 510275, China
  • Received:2003-11-24 Revised:2004-03-02 Online:2004-12-10

摘要: 在温室中建立红树林植物白骨壤模拟湿地系统,分别用正常、5倍和10倍浓度的人工配置的城市污水每周定时定量对模拟系统污灌2次,用海水作对照,持续1年。研究营养污染物氮在系统中的分配、循环及被净化的效果。结果表明,随污水处理浓度的升高,被更换的潮汐水中的含氮量和土壤含氮量都有较大提高;植物体各部分含氮量的高低顺序排列为叶>茎>根;各处理组植物中氮元素的周转期依次为4.81年、5.81年、4.58年和5.86年;模拟系统对污水中氮的净化效果显著。

关键词: 二氧化硫, 小麦, 水杨酸, 乙烯, 过氧化氢

Abstract: By setting-up simulated mangrove wetland in a greenhouse,the behavior of total nitrogen in Avicennia marina simulated wetland system was studied.Three different concentrations of synthetic wastewater,namely C1,C5 and C10 and artificial seawater (control) of 1.5% salinity were discharged into the wetland in fixed quantity twice a week for a year.C1 had the characteristics similar to normal municipal sewage and C5 and C10 were five and ten times of nutrients and heavy metals as that in C1 respectively.The results indicated that sewage irrigation could increase the content of nitrogen in tidal water and soil.The order of nitrogen content in plant was leaf>stem>root.The circulation period of nitrogen up-taken by plants was about 5 years.The simulated wetland system had significant purifying effect on nitrogen in synthetic wastewater.

Key words: SO2, Wheat, Salicylic acid, Ethylene, Hydrogen peroxide

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