Means by street

Min

Max

SE

Illinois

Lafayette

ORTP

Rutgers

Tulane

Annual average daily traffic (cars/day)

26736

17160

21077

11445

7032

Winter microbial biomass carbon (ug∙g⁻¹)

38.33b

38.08b

71.26a

47.36ab

56.16ab

3.74

279.18

3.54

Winter microbial biomass nitrogen (ug∙g⁻¹)

8.46ab

6.69b

12.35a

7.16ab

5.29ab

3.74

279.18

0.74

Tree distance from impervious surface (m)

5.20ab

6.44a

3.74b

7.74a

3.52ab

0.52

19.51

0.31

Bulk density (g∙cm⁻³)

1.42a

1.36ab

1.32ab

1.03b

1.12ab

0.43

2.11

0.03

Winter gravimetric soil moisture (%)

27.21b

27.24b

31.24a

34.15a

28.94ab

20.00

69.49

0.47

Analytes (mg∙kg⁻¹)

Iron—Fe

27250.86ab

23034.25b

29228.46a

32936.25a

22556.25ab

10966.67

53966.67

663.83

Potassium—K

13811.23a

13069.35ab

9838.81c

10152.08abc

8009.17bc

1536.67

29583.33

363.91

Manganese—Mn

994.64ab

643.18b

1169.67a

1188.88ab

1741.42a

65.52

4476.67

64.38

Phosphorus—P

559.89a

326.08b

472.10a

546.90a

454.00ab

114.43

1148.33

18.25

Sulfur—S

316.62b

332.11ab

396.18a

372.69ab

236.76ab

70.83

853.67

10.96

Zinc—Zn

94.4abab

74.32b

108.79a

81.35ab

91.69ab

28.30

266.23

3.25