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应用生态学报 ›› 2020, Vol. 31 ›› Issue (8): 2767-2774.doi: 10.13287/j.1001-9332.202008.038

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天津市典型湖库湿地生态完整性评价

徐香勤1,2, 蔡文倩1,2, 王艳1,2, 代丹1,2,3, 吕旭波1,2, 雷坤1,2, 孙明东1,2*   

  1. 1中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;
    2中国环境科学研究院水生态环境研究所, 北京 100012;
    3北京师范大学水科学研究院, 北京 100875
  • 收稿日期:2019-09-18 修回日期:2020-05-15 出版日期:2020-08-15 发布日期:2021-02-15
  • 通讯作者: * E-mail: sunmingdong@163.com
  • 作者简介:徐香勤, 女, 1986年生, 硕士研究生。主要从事水环境管理研究。E-mail: 512793156@qq.com
  • 基金资助:
    国家水体污染控制与治理科技重大专项(2017ZX07107-001,2018ZX07111-002)资助

Assessment on ecological integrity of typical lakes, reservoirs and wetlands in Tianjin, China

XU Xiang-qin1,2, CAI Wen-qian1,2, WANG Yan1,2, DAI Dan1,2,3, LYU Xu-bo1,2, LEI Kun1,2, SUN Ming-dong1,2*   

  1. 1State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
    2Institute of Water Ecology and Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
    3College of Water Sciences, Beijing Normal University, Beijing 100875, China
  • Received:2019-09-18 Revised:2020-05-15 Online:2020-08-15 Published:2021-02-15
  • Supported by:
    This work was supported by the Major Science and Technology Program for Water Pollution Control and Treatment of China (2017ZX07107-001, 2018ZX07111-002).

摘要: 对湖库湿地进行生态健康评价,可为湖库湿地生态系统修复和管理提供决策依据。本文以天津市为例,选取20个典型的湖库湿地采样点,基于2018年8—9月期间调查获取的物理、化学和生物群落指标(浮游动物、浮游植物、底栖动物、鱼类、水生大型植物、河岸带植物)数据,构建包含物理完整性、化学完整性和生物完整性在内的生态完整性指数(IEI)对采样点生态健康状况进行评价。根据栖息地环境质量(QHEI)、水质状况和人类活动干扰3方面选取参照点,采用标准化方法筛选候选指标,应用层次分析法计算各指标权重,最终得出天津市典型湖库湿地生态完整性评价结果。结果表明: 1)所有样点中,“健康”点位占5.0%,“较好”点位占20.0%,“一般”点位占35.0%,“较差”点位占30.0%,“差”点位占10.0%。天津市典型湖库湿地生态健康状况整体处于一般水平,呈现出西部优于东部的趋势,空间差异显著;2)基于栖息地评分、水质状况与人类活动干扰相结合选取参照点是可行的,依据水质指标可降低选择参照点时的主观性;3)适用性验证结果表明,IEI可较好表征各点位的健康状况,区分效率明显,适用于评价研究区湖库湿地生态健康状况。

关键词: 生态健康评价, 生态完整性指数(IEI), 湖库湿地, 天津

Abstract: The ecological health assessment of lakes, reservoirs and wetlands can provide decision-making basis for ecosystem restoration and management. We selected 20 typical lakes, reservoirs and wetlands sampling points in Tianjin, based on physical, chemical, and biological community indicators data (zooplankton, phytoplankton, benthos, fish, large aquatic plants, riparian plants) obtained during the survey from August to September 2018. We constructed an index of ecological integrity (IEI) including physical integrity, chemical integrity, and biological integrity to evaluate their ecological health. The reference points were selected based on three aspects using standardized methods: habitat environmental quality index (QHEI), water quality status, and disturbance of human activities. The analytic hierarchy process was used to calculate the weight of the three indicators. The evaluation results of the ecological integrity of typical lakes, reservoirs and wetlands in Tianjin were finally obtained. The results showed that: 1) Among all the samples, “healthy” points accounted for 5.0%, “good” points accounted for 20.0%, “general” points accounted for 35.0%, “worse” points accounted for 30.0%, and “poor” points accounted for 10.0%. Ecological health status of typical lakes, reservoirs and wetlands in Tianjin was at a general level, with a trend that the west was better than the east with significant spatial differences. 2) Reference points were selected based on the combination of habitat score, water quality conditions, and human activity disturbance. Water quality indicators could reduce subjectivity when selecting reference points and promote the application of ecological integrity evaluation. 3) The applicability verification results showed that IEI could better characterize the health status of each point, and the discrimination efficiency was obvious, which was suitable for evaluating the ecological health of lakes, reservoirs and wetlands.

Key words: ecological health assessment, IEI, lakes, reservoirs and wetlands, Tianjin City