典型城市内湖水生态健康评价——以武汉市郭郑湖为例  

Typical urban inland lake aquatic ecosystem health assessment:a case study of Guozheng lake in Wuhan city

作　　者：卢泉霖 贾华伟 牟济春 李振涵 戚菁 于洪伟[2,3] 胡承志 雷加强 LU Quanlin;JIA Huawei;MU Jichun;LI Zhenhan;QI Jing;YU Hongwei;HU Chengzhi;LEI Jiaqiang(National Engineering Technology Research Center for Desert-Oasis Ecological Construction,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China)

机构地区：[1]中国科学院新疆生态与地理研究所,国家荒漠-绿洲生态建设工程技术研究中心,乌鲁木齐830011 [2]中国科学院大学,北京100049 [3]中国科学院生态环境研究中心,环境水质学国家重点实验室,北京100085

出　　处：《环境工程学报》2025年第2期269-280,共12页Chinese Journal of Environmental Engineering

基　　金：国家重点研发计划课题资助项目(2022YFC3203601);国家自然科学基金面上资助项目(52170014)。

摘　　要：针对高度人为干扰下的复杂城市内湖进行系统性的生态健康状况评估,是开展生态修复和生物多样性恢复工作的重要基础。本研究以武汉东湖最大子湖郭郑湖为研究区域,通过对北部、中部和南部3个湖区共18个点位进行采样分析,构建用于水生态系统健康的评价体系(其中包括水质、水生生物和沉积物微生物等要素)及分级标准。生物镜检结果标明:郭郑湖北部湖区底栖动物多样性较高,Shannon-Wiener指数(2.37)高于中部湖区(1.98)和南部湖区(1.33),北部湖区节肢动物最多,环节动物最少,其中中国长足摇蚊(Tanypus chinensis)是优势种群;浮游动物中轮虫类总数最多,浮游植物中硅藻门和蓝藻门常见种最多。Pearson相关性分析表明,水温、TOC、COD、DO等水质指标显著影响浮游动物多样性。通过高通量测序分析发现北部湖区沉积物细菌群落丰度小于其他湖区。郭郑湖生态系统健康指数(EHCI)总体为0.55,属于分级标准中“一般”水平,而中部和南部地区湖区生态系统健康程度弱于北部湖区。该研究可对特定湖区的生态系统保护与修复提供精准调控的策略,为管理、保护和恢复湖泊生态系统提供依据。Conducting systematic assessments of the ecological health status of complex urban lakes under significant human disturbance is a crucial foundation for carrying out ecological restoration and biodiversity recovery effort.The research area is Guozheng Lake in Wuhan,which is the largest sub-lake of East Lake.The study involved analyzing 18 sampling points across the lake's northern,central,and southern areas to establish an evaluation system for aquatic ecosystem health.The system included elements such as water quality,aquatic life,and sediment microorganisms,and corresponding grading standards were developed.After conducting microscopic examinations,it was found that the benthic animal diversity in the northern part of Guozheng Lake was higher,with a Shannon-Wiener index of 2.37,which was higher than that in the central(1.98)and southern(1.33)lake areas.The northern area had the most arthropods and the least annelids,among which Tanypus chinensis was the dominant species;rotifers were the most numerous among planktonic animals,while diatoms and Cyanophyta were the most common among planktonic plants.Pearson correlation analysis showed that water temperature,TOC,COD,DO,and other water quality indicators significantly affected plankton diversity.High-throughput sequencing analysis found that the bacterial community abundance in the sediments of the northern lake area was less than in other areas.High-throughput sequencing analysis revealed that the bacterial community abundance in the sediments of the northern lake area was less than in other areas.The overall ecological health comprehensive index(EHCI)of Guozheng lake was 0.55,which was considered"fair"according to grading standards.However,the ecological health of the central and southern lake areas was weaker than that of the northern lake area.This research can provide precise control strategies for the ecosystem protection and restoration of specific lake areas,offering a basis for the management,protection,and restoration of lake ecosystems.

关 键 词：水生生物 综合健康指数 城市内湖 

分 类 号：X826[环境科学与工程—环境工程]