Table 1. Research site

Species	No.	Road name	Land use type	Planted	Age of tree	Total
P. yedoensis	①	Duryu Park	Natural Green	1988	42 ± 1 year	254
	②	Wolgok-ro	General Residential	1992	41 ± 1 year
	③	Seongseobuk-ro	General industrial	1993	40 ± 1 year
P. occidentalis	④	Seongdang-ro	Neighborhood commercial	1987	44 ± 1 year	359
	⑤	Seongdang-ro	General Residential	1987	44 ± 1 year
	⑥	Wolgok-ro	General Residential	1992	42 ± 1 year
	⑦	Wolgok-ro	General Residential/Natural Green	1992	42 ± 1 year
	⑧	Jincheon-ro	General Residential	1992	42 ± 1 year
G. biloba	⑨	Wolgok-ro	General Residential/Natural Green	1992	44 ± 1 year	298
	⑩	Jincheon-ro	General Residential	1992	44 ± 1 year
	⑪	Joamnam-ro	General Residential	1992	44 ± 1 year
	⑫	Haksanbuk-ro	General Residential/Natural Green	1987	46 ± 1 year
	⑬	Haksanbuk-ro	General Residential	1987	46 ± 1 year
Total count						911