基于浮游植物的北方景观河流水生态系统评价  

Evaluation of Water Ecosystem in Northern Landscape Rivers Based on Phytoplankton

作　　者：陆晓晗 曹宸 李叙勇[1,2] LU Xiaohan;CAO Chen;LI Xuyong(State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [2]中国科学院大学,北京100049

出　　处：《环境保护科学》2020年第3期104-113,共10页Environmental Protection Science

基　　金：京津冀城市群地区生态安全关键技术综合示范区建设(2016YFC0503007);北方海岸带小流域水污染防控与生态功能综合提升技术(2017YFC0505803-04);国家自然科学基金青年基金(41401590)。

摘　　要：文章通过对2017~2018年北京市房山区景观河流浮游植物及相应水环境因子春、夏、秋三季的监测,运用生物多样性、综合营养状态指数法,研究了浮游植物组成、结构、生物多样性评价与水环境质量响应关系。结果显示,房山区景观河流浮游植物以硅藻门、绿藻门为主;基于Pearson相关性分析,其总密度与叶绿素a(Chl a)呈现较高的正相关性;同时房山区景观河流生物多样性指标评价和水环境富营养化程度与水源结构、河流连通性相关,须考虑河流客观属性特征,采取针对性管控与优化措施。The phytoplankton and corresponding water environmental factors of the landscape rivers in Fangshan District of Beijing were monitored in the spring,summer and autumn from 2017 to 2018.The relationship between the water quality and the composition and structure as well as the biodiversity evaluation of the phytoplankton was studied by using the biodiversity index method and the comprehensive trophic state index method.The results showed that Bacillariophyta and Chlorophyta were the major kinds of phytoplankton of the landscape rivers in Fangshan District.Based on Pearson correlation analysis,there was a strong positive correlation between the total density of the phytoplankton and the Chlorophyll a(Chl a).The biodiversity index evaluation and eutrophication status of the landscape rivers were related to the water source characteristics and the river connectivity.It was necessary to consider the objective characteristics of the rivers and adopt the targeted management and optimized measures.

关 键 词：浮游植物 景观河流 水生态系统 富营养化 房山区 

分 类 号：X176[环境科学与工程—环境科学]