摘要
基于鱼骨图法,引入环境承载力指标构建小城镇公共安全评价体系。采用主成分法(PCA),结合统计软件SPSS对宾县17个乡镇的公共安全环境承载能力进行评价,找出影响公共安全环境承载能力的重要因子,计算出各乡镇公共安全承载能力的综合评价值,得到不同乡镇的公共安全承载能力排序。结果表明:各乡镇公共安全承载能力差异较大,且基础设施承载因子和土地承载因子是影响乡镇公共安全承载能力最重要的因子,加大公共安全和生态基础设施的投入、有效利用闲置土地,可以较好地提高城镇公共安全承载能力。
Environmental carrying capacity index are introduced into evaluation system of public safety in small towns based on fishbone diagram.By using Principal Component Analysis（PCA） and with the help of SPSS（Statistical Program for Social Sciences） software,carrying capacities for public security environment of 17 villages in Binxian County are evaluated.Factors affecting the bearing capacity of public security environment are found out,and the comprehensive evaluation value of the capacity in each village is calculated to get a sorting of the bearing capacities of different villages.The result shows that there are big differences among the bearing capacities;bearing factors of infrastructure and land affect the bearing capacities most; increasing investment into public safety and ecological infrastructure,and using idle land effectively could better improve the bearing capacity for public security in cities and towns.
出处
《灾害学》
CSCD
2015年第2期124-127,共4页
Journal of Catastrophology
基金
中国博士后科学基金项目"基于环境承载力的城市公共安全规划理论与方法研究"(2014M551247)
国家自然科学基金项目"重大灾害应急物资筹集与随机终止模型及其仿真研究"(71372091)
中央高校基本科研业务费专项基金(DL13CB15)
关键词
小城镇公共安全
环境承载力
评价体系
鱼骨图
主成分法
public security in small cities and towns
environmental carrying capacity
evaluation system
Fishbone Diagram
PCA
