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应用生态学报 ›› 2016, Vol. 27 ›› Issue (7): 2101-2110.doi: 10.13287/j.1001-9332.201607.011

• 第十届国际湿地大会会议专栏 • 上一篇    下一篇

竺山湾湖泊缓冲带湿地生态系统EWE模型构建与分析

咸义1,2, 叶春2*, 李春华2, 王延华1   

  1. 1南京师范大学地理科学学院, 南京 210023;
    2中国环境科学研究院/湖泊工程技术中心/环境基准与风险评估国家重点实验室, 北京 100012
  • 收稿日期:2015-11-25 发布日期:2016-07-18
  • 通讯作者: *E-mail: yechbj@163.com
  • 作者简介:咸 义,男,1991年生,硕士研究生.主要从事恢复生态学研究.E-mail: woshixianyi@126.com
  • 基金资助:
    本文由国家水体污染控制与治理科技重大专项(2012ZX07101-009)资助

Construction and analysis of the EWE model of the wetland ecosystem in lake buffering zone of Zhushan Bay, China.

XIAN Yi1,2, YE Chun2*, LI Chun-hua2, WANG Yan-hua1   

  1. 1School of Geography Science, Nanjing Normal University, Nanjing 210023, China;
    2Centre of Lake Engineering & Technology/State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
  • Received:2015-11-25 Published:2016-07-18
  • Contact: *E-mail: yechbj@163.com
  • Supported by:
    This work was supported by Science and Technology Major Project of the National Water Pollution Control and Treatment (2012ZX07101-009).

摘要: 湖泊缓冲带在湖泊流域空间布局中具有特殊地位,缓冲带内的湿地对于保障流域生态健康和湖泊水环境质量具有十分重要的意义.本研究以太湖竺山湾湖泊缓冲带内的竺山湖湿地生态系统为研究对象,将生物组分划分为16个功能组,构建了生态通道(EWE)模型,并分析了生态系统的特征、状态以及功能组之间的相互关系.结果表明: 竺山湖湿地生态系统的有效营养级范围在1~3.72,营养流动主要发生在前4个营养级,开始于沉水植物和有机碎屑的食物链较多.湿地生态系统的总的能量转换效率为5.1%,并未达到“1/10定律”,说明当前的能量转换效率较低.物质流量在生态系统中的平均传输效率为4.3%.系统的总生产量为2496.66 t·km-2·a-1,总流量为10145.2 t·km-2·a-1.生态系统的多种特征参数表明当前生态系统处于幼态化阶段.

Abstract: Lake buffering zones play a special role in spatial arrangement of the lake watershed, and the wetland in buffering zones also is of great significance in basin ecological health and lake water environmental quality. Taking Zhushanhu wetland ecosystem in the area of lake buffering zone of Zhushan Bay, Lake Taihu as the research object, the biotic components were divided into 16 functional groups to construct the Ecopath with Ecosim (EWE) model, and the characteristics and state of the ecosystem and the interrelation between the functional groups were analyzed. The results showed that the range of effective trophic level in Zhushanhu wetland ecosystem was 1-3.72, tro-phic flows were mainly concentrated in the first 4 trophic levels, and most of the food chains started from submerged plants and detritus. The total energy conversion efficiency of the wetland ecosystem was 5.1%, being lower than the "1/10 law", indicating that the current energy conversion efficiency was low. The average transmission efficiency of material throughput in the ecosystem was 4.3%. The sum of all production in the ecosystem was 2496.66 t·km-2·a-1, and the total system throughput was 10145.2 t·km-2·a-1. The characteristic parameters of ecosystem showed that the current ecosystem was at the immature stage.