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首页> 外文期刊>Aquatic Sciences >Quantifying the ecological stability of artificial aquatic ecosystems: a case study of an artificial lake in Chengdu, China
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Quantifying the ecological stability of artificial aquatic ecosystems: a case study of an artificial lake in Chengdu, China

机译：量化人工水生生态系统的生态稳定性：以成都的人工湖为例

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摘要

An urban artificial lake is generally constructed as a macrophytic lake ecosystem; it has a simple ecosystem structure that results in a fragile ecosystem and weak stability. The ecosystem stability obviously changes with the water quality and the season, especially in summer and autumn. The purpose of this study was to establish a stability evaluation system for an artificial lake ecosystem and verify the system applicability using Lake Luxe as a case study. The system was established by the following three steps: (1) select reference period; (2) establish seasonal and annual evaluation methods by determining the ecological units by an ecological checklist (the populations and communities of phytoplankton, zooplankton, and benthos) and then calculating the seasonal stability indices (SIs) and annual stability indices (SIy) of each ecological unit; calculating each seasonal or annual ecosystem stability index using these calculated SI and ecological units attributes; and calculating the ecosystem stability index for many years; (3) obtain the evaluation results. The results obtained by the seasonal evaluation method showed that the ecosystem community structure was unstable in spring and the total ecosystem biomass was unstable in summer. The redundancy analysis results between phytoplankton stability values and environmental variables showed that dissolved oxygen (DO), total nitrogen (TN), and chlorophyll a (Chla) were the main driving variables that could be used as indicators for the sustainable management of artificial lakes.
机译：一般而言，城市人工湖被构造为大型植物生态系统。它具有简单的生态系统结构，导致脆弱的生态系统和较弱的稳定性。生态系统的稳定性明显随水质和季节而变化，特别是在夏季和秋季。这项研究的目的是建立一个人工湖生态系统的稳定性评估系统，并以Luxe湖为例验证该系统的适用性。该系统通过以下三个步骤建立：（1）选择参考期间； （2）建立季节和年度评估方法，方法是通过生态检查表（浮游植物，浮游动物和底栖生物的种群和群落）确定生态单位，然后分别计算每个季节的季节性稳定性指数（SIs）和年度稳定性指数（SIy）。生态单位使用这些计算出的SI和生态单位属性来计算每个季节或年度生态系统稳定性指数；计算多年的生态系统稳定指数； （3）获得评价结果。通过季节评价法获得的结果表明，春季的生态系统群落结构不稳定，夏季的生态系统总生物量不稳定。浮游植物稳定性值与环境变量之间的冗余分析结果表明，溶解氧（DO），总氮（TN）和叶绿素a（Chla）是主要的驱动变量，可以用作人工湖可持续管理的指标。

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  • 来源
    《Aquatic Sciences》 |2019年第1期|3.1-3.14|共14页
  • 作者

    Chen Fang-Fang; Su Gong-Ping; Mou Hai-Yan; Liang Xuan; Chen Yi; Ao Tian-Qi; Chen Wen-Qing; Li Yun-Zhen;

  • 作者单位

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China|Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China|Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Acad Environm Sci, Chengdu 610065, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ecological stability; Artificial aquatic ecosystem; Phytoplankton community; Sustainable management;

    机译：生态稳定性;人工水生生态系统;浮游植物群落;可持续管理;

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