黑臭水体生物修复中各粒级浮游植物与环境因子的关系  

RELATIONSHIP OF ALL SIZE-FRACTIONATED PHYTOPLANKTON WITH ENVIRON-MENTAL FACTORS AFTER BIOREMEDIATION IN BLACK AND FECULENT WATER

作　　者：刘冬燕[1] 赵敏[1] 林文鹏[1] 

机构地区：[1]上海师范大学生命与环境学院、上海师范大学城市生态与环境研究中心,上海200234

出　　处：《水生生物学报》2009年第3期418-425,共8页Acta Hydrobiologica Sinica

基　　金：上海市教育委员会科学研究项目(06DZ022);上海师范大学科研项目(DKL724);上海市教委重点学科项目(J50402);自然科学基金(40801168);上海师范大学重点学科(DZL711)资助

摘　　要：通过对黑臭水体生物修复过程中水体理化指标以及浮游植物粒经分级叶绿素a的分析,探讨了水体生物修复对理化因子的影响以及各粒级浮游植物与理化因子的关系。生物修复实施后,各试验组CODCr和BOD5均呈下降趋势,试验组C、D、E的氨氮、总氮和总磷净化效果均较显著,氨氮去除率分别达到71.3%、84.0%和93.2%,总氮去除率分别达到45.2%、64.6%和78.0%,总磷下降幅度分别达到46.2%、50.3%和75.5%。其中,试验组理化环境改善最佳的组为E组,其CODCr、NH4和TP指标均较对照组A有明显下降(p<0.05)。Netphytoplankton Chla%与CODCr、TN、NH4和TP呈非常显著的负相关(p<0.01),与NO2-N和NO3-N呈非常显著的正相关;而Nanophytoplankton Chla%和Picophytoplankton Chla%对上述环境因子的响应与Netphytoplankton Chla%相反。The relationships between organism and its surroundings have been widely adopted to evaluate the health of ecosystem. Through the analysis of the size-fractionated phytoplankton in black and feculent water, it discussed the effect of bioremediation on all size-fractionated phytoplankton and the relationship of all size-fractionated ehlorophyll-a with environmental factors to bioremediation, so as to provide biological proof for illustrating the efficiency of measures taken for the bioremediation. Comprehensive measures concerning ecology including the way of adding bioenergizer, biologic algaecide, effective microbe into water, and planting macrophyte are adopted. Group A is the contrast group, does not use any measures; Group B, C, D, E, F and G are test groups. Group B add photosynthetic bacteria and nitrifying bacteria; Group C add photosynthetic bacteria nitrifying bacteria and oxygen strengthen; Group D add photosynthetic bacteria nitrifying bacteria bioenergizer and oxygen strengthen; Group E add photosynthetic bacteria nitrifying bacteria bioenergizer plant Eichhornia crassipes and oxygen strengthen; Group F add photosynthetic bacteria nitrifying bacteria bioenergizer and plant Eichhornia crassipes; Group G add bioenergizer and oxygen strengthen. Beforehand, background was sampled twice on 28th of August in 2002. The experiment began from August 29, 2002. And after the engineering project, samples for water quality analyses were collected on the 29th and 31^st of August, the 3rd , 6th , 9th , 12th and 17th of September respectively. Water samples for phytoplankton analyses were collected with length Niskin bottles （for a total final volume of 10L）. The samples were divided into Pico （0.2--2.0 μm）, Ultra （0.2--5 p,m）, Nano （2--20μm） and Net （20--200μm） size fractions by filtration. Chlorophyll-a was determined by spectrophotometry following the methods proposed by Lorenzen on the 9th , 12th and 17th of September in 2002 respectively. Within the periods of this survey, both of CODc

关 键 词：浮游植物 生物修复 粒径 叶绿素A 

分 类 号：Q178.1[生物学—水生生物学]