| 上海某污水厂排水口邻近海域浮游植物群落与水质评价 |
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| 引用本文： | 庾旸,张艺玟,刘静,尹杰.上海某污水厂排水口邻近海域浮游植物群落与水质评价[J].海岸工程,2021,40(1):37-47. |
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| 作者姓名： | 庾旸 张艺玟 刘静 尹杰 |
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| 作者单位： | 上海海洋大学海洋生态与环境学院;上海市建设用地和土地整理事务中心自然资源部大都市区国土空间生态修复工程技术创新中心 |
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| 基金项目： | 自然资源部大都市区国土空间生态修复工程技术创新中心开放课题——基于陆海统筹与生态红线背景下海岸带生态修复模式与策略研究(CXZX202006)。 |
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| 摘 要： | 上海作为人海互通极度频繁的滨海城市,海岸工程设置繁多,污水处理厂是缓解用水压力的重要海岸工程,该类型海岸工程的环境影响是研究热点,因此基于2019年上海某污水厂出水口邻近海域全年浮游植物群落结构数据,分析了浮游植物生物多样性,以期对污水处理厂进行环境影响评价。共鉴定出浮游植物6门95种,其中硅藻门35种,蓝藻门27种,绿藻门22种,裸藻门6种,甲藻门4种,金藻门1种。研究结果表明:浮游植物种类组成存在季节差异,总体上春秋季节种类组成较多,夏冬季节较少;优势种中以硅藻最多,且硅藻门在浮游植物密度中占比最高,年均细胞密度为412.25×104 cells/L,占79.09%,其中中肋骨条藻(Skeletonema costatum)为全年优势种;物种多样性指数(Shannon-Wiener)、丰富度指数(Margalef)和均匀度指数(Pielou)年度均值分别为2.19,3.09和0.48,表明该污水厂排水口邻近海域水体总体处于中度污染状态;冗余分析(RDA)表明本研究区域对浮游植物影响较大的环境因子是悬浮物浓度、盐度、水温和溶解氧。本文利用浮游植物群落生态学指标作为近海海域水体健康程度的评价指标,同时作为水质指标评估的补充,有利于更全面、整体性、系统化、精细化地开展水质综合评价分析。
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| 关 键 词： | 浮游植物 群落结构 物种多样性 水质评价 |
Structural Analysis of Phytoplankton Community in Adjacent Waters of a Sewage Treatment Plant in Shanghai |
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| YU Yang,ZHANG Yi-wen,LIU Jing,YIN Jie.Structural Analysis of Phytoplankton Community in Adjacent Waters of a Sewage Treatment Plant in Shanghai[J].Coastal Engineering,2021,40(1):37-47. |
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| Authors: | YU Yang ZHANG Yi-wen LIU Jing YIN Jie |
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| Institution: | (College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China;Center of Shanghai Construction Land and Land Consolidation Affairs, Technical Innovation Center of Ecological Restorati on Engineering in Metropolitan Area of Ministry of Natural Resources, Shanghai 200003, China) |
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| Abstract: | Based on the year-round structural data of phytoplankton community collected in the adjacent waters of a sewage plant located at the south bank of the Yangtze River Estuary in 2019 the phytoplankton biodiversity is analyzed in order to carry out environmental impact assessment of the sewage treatment plant.Totally,95 species of 6 phytoplankton phyla have been identified,which include 35 species of Bacillatiophyta,27 species of Cyanophyta,22 species of Chlorophyta,6 species of Euglenophyta,4 species of Pyrrophyta and 1 species of Chrysophyta.The species composition of phytoplankton varies seasonally,with more species being in spring and autumn and less in winter and summer.In the predominant species,diatom is the most and its mean annual cellular density in biological population is 412.25×104 cells/m3,accounting for about 79.09%of all the phytoplankton species.Among the diatom,Skeletonema costatum is the dominant species all year round.The annual average values of Shannon-Wiener index,Margalef index and Pielou index are 2.19,3.09,0.48 respectively,indicating that the water in the adjacent waters of the sewage treatment plant is in a medium pollution state.The redundancy analysis(RDA)shows that the environmental factors affecting greatly the phytoplankton in the study area are suspended matter concentration,salinity,water temperature and dissolved oxygen.In this paper,the ecological indicators of phytoplankton communities are used as the evaluation indicators of water health degree in the offshore area and also as the supplement of water quality assessment,which is in favor of comprehensive,systematic and refined evaluation and analysis. |
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| Keywords: | phytoplankton community structure species diversity water quality assessment |
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