生态与农村环境学报 ›› 2013, Vol. 29 ›› Issue (3): 284-289.doi:

• 流域生态保护与水污染控制研究专题 • 上一篇    下一篇

滆湖东岸生态修复试验区的水质净化效果

吴晓东,潘继征,李文朝,黄峰,赵海光   

  1. 中国科学院南京地理与湖泊研究所
  • 收稿日期:2012-12-06 修回日期:2013-02-26 出版日期:2013-05-25 发布日期:2013-06-07
  • 通讯作者: 潘继征 中国科学院南京地理与湖泊研究所 E-mail:jzpan@niglas.ac.cn
  • 作者简介:吴晓东(1985-),男,福建宁化人,博士生,主要研究方向为湖泊污染控制与生态修复。E-mail:wuxd03@qq.com
  • 基金资助:

    国家水体污染控制与治理科技重大专项(2008ZX07101-007-005)

Water Purification Effect in the Eco-Remediation Zone in the East of the Gehu Lake

WU  Xiao-Dong, PAN  Ji-Zheng, LI  Wen-Chao, HUANG  Feng, ZHAO  Hai-Guang   

  1. Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences
  • Received:2012-12-06 Revised:2013-02-26 Online:2013-05-25 Published:2013-06-07
  • Contact: PAN Ji-Zheng Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences E-mail:jzpan@niglas.ac.cn

摘要: 在滆湖东岸的小庙港湾,构建由沉水、浮叶和挺水植物组成的生态修复试验区,研究其水质净化效果。于2009年12月至2010年11月,跟踪监测敞水区(对照区)和试验区的水体理化指标。结果表明:(1)试验区水体悬浮物(SS)的去除效果较好,周年平均去除率达24.85%。(2)试验区水体透明度改善较明显,比敞水区提高11.24%。(3)试验区水体总磷(TP)和叶绿素a(Chl-a)的去除效果明显,两者浓度周年平均值分别比敞水区下降21.90%和22.83%。(4)试验区水体总氮(TN)、氨氮(NH3-N)和高锰酸钾盐指数(CODMn)的周年去除率较低。与敞水区相比,CODMn和NH3-N浓度的周年平均值分别仅下降9.49%和3.52%,TN浓度周年平均值比敞水区增加6.69%。(5)试验区水体水质的净化效果受季节、水生植物生长状况等因素的影响。

关键词: 滆湖, 水生植被, 水质净化, 生态修复

Abstract: A bio-remediation experiment zone, using a stereo bio-system consisting of submerged, floating-leaf and emergent aquatic plants to purify water was set up at the Xiaomiao Bay in the east of the Gehu Lake. Monitoring of physico-chemical indices of the waterbodies in the open waters (CK) and the zone was performed from December 2009 to November 2010. Results show that the bio-remediation was quite effective in removing suspended solids with an average annual removal rate of 24.85%. Iit also significantly improved transparency of the waterbody or by 11.24% as compared with that in CK. The remediation reduced TP and Chl-a contents by 21.9% and 22.83%, respectively. Moreover, its effects on removal of TN and NH3-N and CODMn were not so significant. It reduced CODMn by 9.49% and NH3-N by 3.52%, only, and however, even increased TN by 6.69%. Its water purification effect varied with the seasons and affected by growth of the aquatic plants.

Key words: Gehu Lake, aquatic plants, water purification, ecological remediation

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