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生态学杂志 ›› 2009, Vol. 28 ›› Issue (10): 2042-2047.

• 研究报告 • 上一篇    下一篇

金鱼藻、环棱螺及其组合处理对水生附着生物含量和氮、磷浓度的影响

兰策介1;王备新1**;陈开宁2;陈爱卿1;姜丽红1   

  1. 1南京农业大学昆虫学系,南京 210095;2中国科学院南京地理与湖泊研究所,南京 210008
  • 出版日期:2009-11-10 发布日期:2009-11-10

Effects of  |Ceratophyllum demersum, Bellamya purificata, and their combination on water body’s periphyton content and N and P concentrations.

LAN Ce-jie 1;Bei-xin1;CHEN Kai-ning2;CHEN Ai-qing1;JIANG Li-hong1   

  1. 1Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China;2Nanjing Institute of Geography &|Limnology, Chinese Academy of ,Sciences, Nanjing 210008, China
  • Online:2009-11-10 Published:2009-11-10

摘要: 通过模拟试验,研究了金鱼藻(Ceratophyllum demersum)、梨形环棱螺(Bellamya purificata)及其组合3种处理对水生附着生物干质量(附着生物干质量与底栖藻类Chla)、总氮(TN)、氨氮(NH4+-N)、硝酸盐氮(NO3--N和总磷(TP)的影响。结果表明:(1)金鱼藻对水生附着生物干重和Chla含量的增长率分别为295.62%(P<0.01)和32.31%(P<0.05),环棱螺对二者的去除率为65.69%(P<0.05)和46.19%(P<0.01),组合对二者的去除率为70.07%(P<0.05)和70.16%(P<0.01);(2)金鱼藻、环棱螺及其组合对TN的平均去除率分别为35.18%、15.27%和20.48%,对NO3--N为22.34%、18.33%和10.66%,对NH4+-N为37.88%、13.98%和25.72%,对TP为53.12%、8.38%和41.97%;(3)金鱼藻与环棱螺在脱氮除磷时表现出正、负相互作用,负交互作用一定程度地促进了N、P浓度的升高。鉴于水体景观质量的提高和富营养化控制,同时使用沉水植物和螺类有利于水体的生态修复。

关键词: 白僵菌油剂, 超低容量, 生物多样性

Abstract: With simulation test, the effects of Ceratophyllum demersum, Bellamya purificata, and their combination on the water body’s periphyton dry mass (PDM) and the contents of Chla, total N (TN), total P (TP), NO3--N, and NH4+-N were studied. C. demersum increased the PDW and Chla content by 295.62% (P<0.01) and 32.31% (P<0.05), while B. purificata and its combination with C. demersum decreased the PDW and Chla content by 65.69% (P<0.05) and 70.07% (P<0.05), and 46.19% (P<0.01) and 70.16% (P<0.01), respectively. Averagely, C. demersum, B. purificata, and their combination removed TN by 35.18%, 15.27%, and 20.48%, TP by 53.12%, 8.38% and 41.97%, NO3--N by 22.34%, 18.33%, and 10.66%, and NH4+-N by 37.88%, 13.98% and 25.72%, respectively. C. demersum and B. purificata showed antagonism and synergism in removing N and P. Antagonism increased the N and P concentrations to some extent. It was suggested that utilizing submerged macrophytes and snails simultaneously would benefit the improvement of water body quality and the control of eutrophication, and thus, the restor
ation of water ecosystem.

Key words: Beauveria bassiana oil formulation, Ultra low volume, Biological diversity