作　　者： ; ; ;

机构地区： 哈尔滨师范大学地理科学学院环境科学研究所

出　　处： 《安全与环境学报》 2005年第5期32-34,共3页

摘　　要： 城市作为人口高度聚集的人工生态系统,其安全具有脆弱性。本文利用SPSS统计软件统计计算,从选取关键因子入手,采用因子分析方法和聚类分析方法,研究了黑龙江省12座城市生态系统的生态安全,通过因子得分和聚类分级结果得出结论:牡丹江排名第一位,生态安全程度较高;而作为黑龙江省中心城市的哈尔滨生态安全程度却较差,但提高潜力很大。通过分析,针对黑龙江省的实际状况,提出了有针对性的对策。 The paper is aimed at presenting the author＇s research in- to ecological security of the urban ecosystem. As is known, the concept of ecological security hasn＇t yet been made generally acknowledged at present. Therefore, the ecological security research remains still at the primary stage, which is mainly focused on the concept of ecological security and the agricultural sustainable development. Since urban areas are an artificial ecosystem which is highly crowded with large numbers of population, their ecosystem security proves even more fragile. In this paper, the authors regard urban Heilongjiang Province as the research object, taking 10 factors as samples to be evaluated by using the software SPSS to count, adopting factor analytical method and clustering analytical method to analyze the ecological security with the 12 urban ecosystems. According to the component score and clustering results, the authors have drawn a certain conclusions and put forward the corresponding countermeasures for ecological security. The results of the study reveal that： Mudanjiang city places first, ecological security rate of the city is higher. However, As the capital city of Heilongjiang Province, Haerbin proves even worse than the other cities in ecological security rate, but of course it is of great potentiality to make further improvement. One more word, the SPSS software this article used still remains the attempt in ecological security of the urban ecosystem.

关 键 词： 环境科学 生态安全 城市生态系统 因子分析 聚类分析 生态系统方式

领　　域： [环境科学与工程]