【摘要】 以实地调查和Landsat TM遥感数据为基础,分析了大连市面临的主要生态问题,并分别构建了大连市水土保持安全格局、水源保护安全格局和防洪安全格局,综合三者构建了综合生态安全格局.根据主要生态问题的空间分异,划分为低、中、高三个水平,能够为大连市的开发建设提供决策支持.构建生态安全格局是指引城市建设用地增长的有效方法,具体应用时,需根据城市的特点和发展阶段,对三个水平的生态安全格局进行取舍.最后对生态安全格局研究的思想和构建方法进行了梳理,并对其局限进行了探讨.更多还原

【Abstract】 Based on field investigations and Landsat TM remote sensing data,this paper analyzed the main problems of Dalian,and then constructed soil-water conservation security pattern,drinking water conservation security pattern and flood-control security pattern separately.In addition,integrated this elementary security pattern into final integrated ecological security pattern for Dalian.The ecological security pattern consists of high,medium and low levels,which can provide decision supports for the development and construction of Dalian.The construction of ecological security pattern is an effective method guiding urban growth,and the application of this method should chose one of the three level ecological security patterns based on the characteristics and development stage of the city.Finally,this paper summarized the thought and construction methods of ecological security pattern,and discussed the limitations of ecological security pattern.and discussed advantages and disadvantages of this method.更多还原