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生态学杂志 ›› 2012, Vol. 31 ›› Issue (07): 1817-1822.

• 研究报告 • 上一篇    下一篇

基于分形理论的湖州市城市生态系统健康评价

马爽爽1,陈奕1,2,许有鹏1**   

  1. (1南京大学地理与海洋科学学院, 南京 210093;2浙江省水利水电勘测设计院, 杭州 310002)
  • 出版日期:2012-07-10 发布日期:2012-07-10

Urban ecosystem health assessment of Huzhou, Zhejiang Province of East China based on fractal theory.

MA Shuang-shuang1, CHEN Yi1,2, XU You-peng1**   

  1. (1School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China; 2Zhejiang Design Institute of Water Conservancy and Hydroelectric Power, Hangzhou 310002, China)
  • Online:2012-07-10 Published:2012-07-10

摘要: 针对当前城市生态系统不断恶化的问题,将景观格局指数、水环境参数与社会经济指标相结合,构建生态系统健康评价指标体系。利用自相似理论与分形理论计算系统分维数,并建立分形维数与生态系统健康之间的联系,从而对城市化不同发展阶段的生态系统健康进行定量评估和动态趋势分析。通过对1997、2001和2005年湖州市生态系统分维数的分析计算,得到3期分维数分别为0.8934、1.1723和1.2619,预示着生态系统朝非健康状态发展。研究表明,湖州市城市化的发展已对生态系统造成了不利影响,因此在未来城市的规划与建设中需更加注重对生态与环境的保护。

关键词: 稳定同位素, 内壳, 茎柔鱼, 洄游路径, 食性

Abstract: In view of the deteriorating urban ecosystem, a combination of landscape pattern index, water environment parameters, and socio-economic indicators was adopted to build an urban ecosystem health assessment index system. Based on self-similarity theory and fractal theory, the system fractal dimension was calculated, and the link between the fractal dimension and ecosystem health was set up to quantitatively evaluate the urban ecosystem health status and analyze its dynamic trend at different stages of urbanization. By analyzing and calculating the ecosystem fractal dimension of Huzhou City in 1997, 2001, and 2005, the fractal dimensions in the three years were obtained, which were 0.8934, 1.1723, and 1.2619, respectively, foreshowing that the urban cosystem of the City was growing towards an unhealthy condition. This study indicated that the development of Huzhou City’s urbanization had made a negative effect on the urban ecosystem, and thus, more attention should be paid to the ecological and environmental protection during urban planning and onstruction in the future.

Key words: stable isotopes, gladius, jumbo squid, migration patterns, feeding habits.