Table 2 Leaf trait parameters and variation characteristics of plants in two urban locations in China. Abbreviations: LT: Leaf thickness; LA: Leaf area; LDMC: Leaf dry matter content; RWC: Leaf relative water content; SLA: Specific leaf area; SD: Stomatal density; VD: Leaf vein density; Chla: Chlorophyll a; Chlb: Chlorophyll b; Car: Carotinoid; Chl: Chlorophyll

Mudangjiang

LT

0.17 ± 0.03

0.11

0.24

-0.21

0.23

19.33

LA

25.48 ± 25.91

3.06

119.74

12.39

3.31

101.70

LDMC

0.61 ± 0.12

0.34

0.85

1.05

-0.19

19.33

RWC

0.49 ± 0.14

0.26

0.81

0.71

0.40

27.40

SLA

235.25 ± 72.83

127.55

406.54

0.61

0.66

30.96

SD

218.32 ± 122.11

75.90

584.79

4.29

1.77

55.93

VD

5.91 ± 1.48

3.38

9.17

0.31

0.29

25.11

Chla

4.37 ± 5.11

0.22

17.58

1.45

1.43

116.96

Chlb

1.19 ± 1.40

0.01

4.68

1.36

1.48

118.06

Car

2.43 ± 1.17

0.52

5.32

1.02

0.71

47.96

Chl

5.56 ± 6.49

0.26

22.27

1.45

1.45

116.85

Bozhou

LT

0.17 ± 0.03

0.13

0.21

-1.53

-0.16

15.92

LA

29.23 ± 37.39

3.15

124.12

6.67

2.49

127.95

LDMC

0.38 ± 0.83

0.23

0.48

-0.94

-0.53

22.29

RWC

0.75 ± 0.08

0.63

0.85

-0.84

-0.34

10.40

SLA

145.58 ± 47.81

77.10

203.17

-1.79

-0.13

32.84

SD

354.36 ± 109.41

210.61

559.29

0.13

0.58

30.87

VD

3.56 ± 1.23

1.44

5.10

-0.34

-0.60

34.70

Chla

4.43 ± 2.81

1.22

9.04

-1.28

0.43

63.46

Chlb

1.00 ± 0.86

0.17

2.17

-2.20

0.39

86.41

Car

1.10 ± 0.65

0.55

2.57

2.92

1.62

59.35

Chl

5.42 ± 3.54

1.57

10.53

-1.94

0.30

65.26