赣江流域浮游硅藻群落结构与环境因子的关系  

Relationship between Community Structure of Planctnoic Diatom & Environmental Factors in Ganjiang River Basin

作　　者：黄丹 张萌 刘足根 李惠民 

机构地区：[1]萍乡市环境科学研究所,江西萍乡337000 [2]江西省环境保护科学研究院,江西南昌330029

出　　处：《萍乡学院学报》2015年第3期41-47,共7页Journal of Pingxiang University

基　　金：国家水体污染控制与治理科技重大专项子课题(2012ZX07501001-06);江西省科技计划项目(20114BAB213004);江西省社会发展支撑计划项目(20133BBG70001)

摘　　要：利用CCA分析对赣江流域影响浮游硅藻的环境因子进行筛选,结果发现影响浮游硅藻物种组成的主要环境因子:在丰水期,纬度(N)>Zn>TN>经度(E)>氰化物(CN-)>p H;在枯水期,纬度(N)>Pb>Hg>Cr6+>水量(WF)>p H;在平水期,纬度(N)>CN->水温(WT)>经度>As>氟化物(F-)。影响浮游硅藻密度组成的主要环境因子:在丰水期,纬度>Zn>TN>挥发酚>CN->石油类;在枯水期,Pb>WT>F->水量>p H>CODMn;在平水期,CN->WT>水位(WL)>BOD5>粪大肠杆菌>TN。从而得出浮游硅藻与各环境因子相关系数都很高,浮游硅藻物种组成、密度与主要环境因子间的相关性都很强。Using the CCA analysis to filter out the environmental factors which affect planktonic diatoms of Ganjiang River Basin, the results show that the main environmental factors of affecting the planktonic diatoms＇ specie compositions： in the high water period, N〉Zn〉TN〉E〉CN^-〉pH; in the low water period, N〉Pb〉 Hg〉Cr^6＋〉WF〉pH; and in the normal water period, N〉CN-〉WT〉E〉As〉F^-. The main environmental factors of affecting the planktonic diatom density： in the high water period, N〉Zn〉TN〉volatile phenol〉CN-〉petrolenm; in the low water period, Pb〉WT〉F^-〉WF〉pH〉CODMn; in the normal water period, CN^-〉WT〉WL〉BODs〉 Fecal coli-form〉TN. Thus the results show that planktonic diatoms and each environmental factors correlation coefficient is high, so do specie composition and density of planktonic diatoms.

关 键 词：浮游硅藻 赣江流域 CCA 环境因子 

分 类 号：Q948.8[生物学—植物学]