太原市居住区绿地植物多样性特征及其与社会经济因素相关性研究

基于山西省太原市45个居住区绿地植物多样性调查，运用植物多样性指数及PCA主成分分析，分析居住区绿地植物多样性特征及其与社会经济因子之间的关系。结果表明，太原市居住区绿地中维管束植物146种，隶属于39科、73属，其中乔木101种，灌木45种。53%的居住区绿地中的乔木物种数为11～20种，而51%的居住区绿地中的灌木物种数为5种及以下，乔木物种的丰富度和均匀度均明显高于灌木物种。PCA排序结果显示，城镇居民人均可支配收入、城镇居民人均消费性支出及房龄是影响植物多样性水平的主要因子。

Characteristics of Plant Diversity and Its Co-relationship with Socioeconomic Factors in Residential Areas of Taiyuan City

Based on the survey of plant diversity in 45 residential areas in Taiyuan City, Shanxi Province, plant diversity index and principal component analysis were used to analyze the characteristics of plant diversity in residential quarter green space and its relationship with social and economic factors. The results showed that there were 146 species of vascular plants, belonging to 73 genera and 39 families, including 101 species of arbors and 45 species of shrubs. The number of arbor species in the green space of 53% residential areas was 11 to 20 species, while the number of shrub species in 51% residential areas was 5 species or less. The richness and evenness of arbors were significantly higher than those of shrubs. The results of PCA ranking showed that per capita disposable income of urban residents, per capita consumption expenditure of urban residents and housing age were the main factors affecting the level of plant diversity.