Evaluation and classification of residential greenbelt quality based on factor analysis & clustering analysis:An example of Xinxiang City,China

基于因子分析和聚类分析的居住区绿地质量评价及分类——以中国新乡市为例(英文)

Five factors expressing greenbelt quality and one factor expressing quantity were adopted for evaluation of the residential greenbelt, and the AHP （Analytical Hierarchy Process） method was used to determine the value of factors. Thirty residential areas were selected as the samples. Two principal components were extracted and their expression was constructed by method of factor anlysis, therefore, quality evaluation of residential greenbelt was obtained. The accuracy of the function and implement quality classification toward the residential greenbelts in Xinxiang City were validated by clustering analysis method. The results showed that the greenbelt quality of fourteen residential areas was higher than the average level, of which eleven were newly-built residential areas. The 30 residential areas were classified into three types according to their greenbelt features and their formation by clustering analysis method. Finally rational proposal basing on aforesaid evaluating results was proposed for construction and renewal of residential greenbelt, upon which directive basis was provided for construction and renewal of residential greenbelt.

选取5个反映居住区绿地质量的因子和1个反映量的因子,应用AHP法确定因子的取值。选取30个居住区为样本,应用因子分析法提取主成分,构建主成分的表达式,进而求得居住区绿地质量评价函数。用聚类分析方法对函数的准确性进行验证,并对新乡市居住区的绿地质量进行了分类。绿地质量高于平均水平的居住区有14个,其中11个是新建的住区。用聚类分析将30个居住区分为3类,给出各类居住区绿地的特征并分析了产生的原因。提供一种居住区绿地质量定量评价与分类的方法,根据评价结果为指导居住区绿地建设与更新提供依据。表6参10。