白洋淀浮游植物群落结构与水质评价_王瑜.pdf

J．LakeSci．(湖泊科学)，2011，23(4):575-580
http://www．jlakes．org．E-mail:[e-mail]
2011byJournalofLakeSciences

白洋淀浮游植物群落结构与水质评价*

王瑜1，2，刘录三1＊＊，舒俭民1，刘存歧2，朱延忠1，田志富2
(1:中国环境科学研究院，北京100012)
(2:河北大学生命科学学院，保定071002)

摘要:为掌握白洋淀浮游植物的群落结构及水质状况，对白洋淀8个典型采样点进行了采样调查，共发现浮游植物133
种(属)，群落组成以绿藻、硅藻和蓝藻为主;春季以绿藻和硅藻为优势门类，小球藻、尖尾蓝隐藻、不定微囊藻为优势种
(属)，浮游植物的密度在496×104－6256×104cells/L之间，平均密度为2384×104cells/L;夏季以绿藻和蓝藻为优势门
类，小球藻、粗状细鞘丝藻、肾形藻为优势种(属)，浮游植物的密度在318×104－4630×104cells/L之间，平均密度为1785
×104cells/L，与2005年以来对白洋淀进行的2次浮游植物生态调查结果比较表明，浮游植物密度出现显著上升．应用修
正卡尔森营养状态指数法和优势种评价法对白洋淀的营养状态进行评价，结果显示白洋淀多数水体处于富营养状态．
关键词:白洋淀;浮游植物;群落结构;水质评价

CommunitystructureofphytoplanktonandthewaterqualityassessmentinLakeBaiyang-
dian

WANGYu1，2，LIULusan1，SHUJianmin1，LIUCunqi2，ZHUYanzhong1＆TIANZhifu2
(1:ChineseResearchAcademyofEnvironmentalSciences，Beijing100012，P．R．China)
(2:CollegeofLifeScience，HebeiUniversity，Baoding071002，P．R．China)

Abstract:TostudythecommunitystructureofphytoplanktonandassessthewaterqualityinLakeBaiyangdian，aninvestigation
hasbeenconductedateighttypicalsamplingsites．Thisinvestigationshowedthatamongthetotal133speciesidentified，Chloro-
phyta，Cyanophyta，andBacillariophytaweredominantinthephytoplanktoncommunity．Inspring，ChlorophytaandBacillariophy-
tawerethedominantphylum，andChlorellasp．，Chroomonasacuta．Uterm．andMicrocystisincertaLemm．werethedominantspe-
cies．Thedensityofthephytoplanktonrangedfrom496×104to6256×104cells/Lwithanaverageof2384×104cells/L．Insum-
mer，ChlorophytaandCyanophytawerethedominantphylum，andChlorellasp．，LeptolyngbyavalderianaAnagn．andNephrocyti-
umagardhianumNageli．werethedominantspecies．Thedensityofthephytoplanktonrangedfrom318×104to4630×104cells/L
withanaverageof1785×104cells/L．Accordingtothecomparisonbetweenthisinvestigationandtheprevioustwoecologicalinves-
tigationssince2005，theabundanceofthephytoplanktonhasincreasedsignificantly．TheindexofCarlsonnutritionalstatusandthe
dominantgenusassessmentrevealedthatthemajoritywaterwaseutrophicintheLakeBaiyangdian．
Keywords:LakeBaiyangdian;phytopla