%0 Journal Article
%T A STUDY ON APPLYING PFU PROTOZOAN COMMUNITY TO MONITOR THE SELF-PURIFICATION EFFECTIVENESS OF THE BEIJING WASTEWATER CANAL<br>利用PFU原生动物群落监测北京排污河净化效能的研究
%A Xu Mu-Qi
%A <br>许木启
%J 生态学报
%D 1991
%I 
%X The Beijing Wastewater Canal is a main one for discharge of wastewa-ter from Beijing city. It receives a great deal of domestic sewage and industrial Wastewater from urban districts.To monitor the toxic stress of the Wastewater and the effectiveness of self-purification at various sections of the water body,the artificial substrate, polyurethane foam unit (PFU) method developed by Cairns(1969)was taken for colonizing microbial community in August, 1984. Examination of the PFU samples revealed a total of 60 protozoan species in 6 sampling stations. Field and laboratory experiments of Wastewater effects on the protozoan colonization rate were carried out for five times and the contents of T P, T N, NH4-N, BOD5 and COD were analysed as well. According to the MacArthur-Wilson equilibrium model, three function parameters(Seq, G, t90%) were brought forward in the field ecological tests.The results from above investigation were found to be coincident with the degrees of pollution and the process of self-purification in the canal. An analysis of the structural and function parameters on the PFU protozoan community indicated that the self-purification of the Beijing Wastewater Canal was effectual. At the upstream sampling stations where were heavily polluted, the colonization rates of the protozoan community are lower than at the downstream sampling stations where the process of self-phurification speeds up. Terefore, it is a good method to predict the effects of discharge of Wastewater on the aquatic ecosystem with the PFU protozoan community tests.
%K PFU method
%K microbial community
%K colonization rate<br>原生动物群落
%K PFU法
%K 群集速度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=70397CB9B47B568A239168D923463274&yid=116CB34717B0B183&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=E203FB1A272C9DD2&eid=CD775AE9DDBD7B53&journal_id=1000-0933&journal_name=生态学报&referenced_num=21&reference_num=3