唐山京唐港电厂温排水对浮游植物群落的影响  

Influence of Tangshan Jingtanggang Power Plant′s Thermal Drainage on Marine Phytoplankton Community

作　　者：马旺 MA Wang(Hebei Province Hydrogelogy Survey Institute,Shijiazhuang,Hebei 050021)

机构地区：[1]河北省水文工程地质勘查院,河北石家庄050021

出　　处：《安徽农业科学》2022年第3期69-73,共5页Journal of Anhui Agricultural Sciences

基　　金：河北省自然资源厅科技项目(454-0503-JBN-XCLS)。

摘　　要：根据前期模拟唐山京唐港电厂温排水影响范围,布设5个站位,分别于2020年5月、8月、11月进行调查取样工作。通过调查取样得出的水温、盐度、电导率、叶绿素a等水文分布特征和硝酸盐、磷酸盐、硅酸盐、铵盐、亚硝酸盐等营养盐分布特征,结合影响范围内浮游植物物种组成和多样性指数的季节变化,采用冗余分析方法,研究电厂温排水对浮游植物群落的影响。结果表明,5月份JTG-1受到硅酸盐影响较大,其余站位受到硝酸盐或盐度影响;8月份各站位受温度影响较为明显;11月份则与盐度呈负相关。在优势种中,大洋角管藻受盐度影响较大,曲舟藻和新月菱形藻受硅酸盐和铵盐影响较大,微小原甲藻受硝酸盐影响较大。According to the preliminary simulation of the thermal drainage impact of Tangshan Jingtanggang Power Plant,five stations were set up to conduct survey and sampling work in May,August and November 2020,respectively.The hydrological distribution characteristics of water temperature,salinity,conductivity,chlorophyll a,etc.and the distribution characteristics of nutrients such as nitrate,phosphate,silicate,ammonium and nitrite were obtained through investigation and sampling,combining with the seasonal changes of phytoplankton species composition and diversity index in the affected area,the redundant analysis method was used to study the influence of thermal drainage of power plant on phytoplankton community.The results showed that in May,JTG-1 was greatly affected by silicate,and other stations were affected by nitrate or salinity;in August,the stations were obviously affected by temperature;in November,there was a negative correlation with salinity.Among the dominant species,Cerataulina pelagica was more affected by salinity,Pleurosigma spp.and Nitzschia closterium were more affected by silicate and ammonium,and Prorocentrum minimum was more affected by nitrate.

关 键 词：温排水 浮游植物群落 营养盐 多样性指数 优势种 环境因子 

分 类 号：X171[环境科学与工程—环境科学]