Assessment of the distribution and diversity of street tree species in Aydin, Turkey

作者：Kara Baris^*

来源：Journal of Food Agriculture and Environment, 2012, 10(3-4): 919-928.

• Avenue
• boulevard
• land use
• Shannon index
• Simpson index
• species richness

In the current study. the distribution and diversity of street-tree species were evaluated in Aydin City, Turkey, in correlation with land-use category and road-type. The study encompassed 100% of the city's limits covering 24 neighborhoods of Aydin. Wider limits of the city were used in the study. The study was performed in 92 avenues and 74 boulevards, comprising 7 land-use categories and 3032 street trees from 24 families, 39 genera, and 53 species. The Rutaceae and Citrus genera (particularly Cirrus aurantium L.) were the most common tree groups in the study area. The largest Shannon-Weiner Diversity index values were obtained in the avenues of residential areas (2.10) and boulevards of industrial areas (2.05). The largest Simpson's Diversity index values were in the avenues (0.81) and boulevards of industrial areas (0.85). It was suggested that the number of trees belonging to the Rutaceae family in avenues and boulevards across the city should be reduced to 470 in avenues and 440 in boulevards, while the number of trees belonging to the Citrus genera should be reduced to 313 in avenues and 293 in boulevards. The number of C. aurantium trees should be a maximum of 157 in avenues and 147 in boulevards. It was also suggested that the Shannon-Weiner Diversity index value should be increased to 2.94 in the avenues of residential areas and 3.80 in the boulevards of industrial areas, while the Simpson's Diversity index should be increased to 0.98 in the avenues and boulevards of industrial areas.

• 出版日期2012-10