Table 1 Statistic summary of element concentrations (data are in μg/g dry weight, CV in %) and Fe:Ti ratios in the lichen and soil samples from Mu Us Sandland. Statistic: “!” indicates higher values for the lichen than soil; “#” indicates similar values for lichens and soil in S2 and S3; otherwise, the values are lower in lichens than in soil (p ≤ 0.05, independent samples t test on raw concentrations and log10-normalized Fe:Ti ratios) in all sites.

From: Two lichens differing in element concentrations have similar spatial patterns of element concentrations responding to road traffic and soil input

 

Lichens

Soil (n = 9)

XAu (n = 21)

XAa (n = 20)

XAu:XAa

Mean

CV (%)

Min

Max

Mean

CV (%)

Min

Max

Mean

Mean

CV (%)

Min

Max

Al

8136

11.78

6884

10,638

6694

14.47

5334

9000

1.21

63,640

6.29

57,531

69,560

Ba

115.0

12.71

93.75

150.4

87.43

15.93

63.45

122.4

1.30

546.6

6.13

488.6

604.6

Ca

3843

13.42

3053

5012

2911

15.56

2146

3865

1.32

7271

11.04

5993

8644

Cd

0.947!

16.62

0.726

1.307

0.710!

14.74

0.513

0.921

1.33

0.179

9.06

0.164

0.210

Ce

11.23

12.99

9.301

15.56

7.640

17.14

5.665

10.88

1.47

66.37

6.10

59.73

72.29

Co

4.330

11.76

3.299

5.375

4.058

13.73

3.303

5.174

1.06

12.10

7.74

10.12

13.14

Cs

1.637

15.97

1.251

2.307

1.460

13.89

1.176

1.856

1.12

6.329

10.57

4.935

7.154

Cu

12.87

14.56

9.870

17.98

9.459

15.20

7.205

13.27

1.35

20.55

7.97

17.30

22.25

Dy

0.885

22.06

0.644

1.378

0.538

22.28

0.374

0.838

1.62

4.794

7.98

4.166

5.279

Er

0.488

13.75

0.399

0.678

0.354

17.40

0.254

0.502

1.37

2.701

7.46

2.316

2.930

Eu

0.231

19.91

0.147

0.337

0.149

24.63

0.103

0.235

1.55

1.273

7.01

1.134

1.390

Fe

6361

13.44

5047

8787

5059

14.19

3772

6690

1.25

28,234

7.54

24,016

30,419

Gd

0.840

20.67

0.639

1.279

0.565

22.67

0.382

0.886

1.47

4.564

6.23

4.133

4.947

Ho

0.182

17.12

0.132

0.264

0.127

18.68

0.088

0.177

1.43

0.920

7.89

0.796

1.014

K

8213

10.21

6693

9317

7314

12.41

5916

9021

1.12

18,533

6.40

17,067

20,168

La

5.478

13.22

4.506

7.553

4.152

16.07

3.110

5.844

1.32

33.28

6.83

30.42

36.88

Lu

0.074

13.74

0.060

0.102

0.054

15.74

0.040

0.076

1.36

0.441

7.63

0.364

0.477

Mg

2505

14.90

1955

3439

2078

19.27

1465

3034

1.19

8875

14.60

6280

10,232

Mn

160.5

12.77

129.0

212.9

128.6

14.58

103.8

176.1

1.24

586.3

7.82

509.1

653.8

Na

2511

12.46

2043

3304

1953

16.56

1501

2731

1.28

9,787

10.35

8,854

11,948

Nb

1.403

18.38

1.088

2.074

1.184

12.71

0.912

1.484

1.19

14.009

7.56

12.08

15.50

Nd

5.647

13.19

4.631

7.744

3.833

16.55

2.892

5.448

1.47

28.03

5.99

25.66

30.29

Ni

8.269

12.47

6.883

11.34

6.392

14.59

5.029

8.488

1.29

28.85

9.08

23.66

31.96

P

2493!

11.80

2068

3135

2217!

13.75

1818

2991

1.12

402.5

7.05

360.8

461.9

Pb

14.93

11.99

12.04

20.19

11.51

14.73

8.760

15.25

1.29

22.92

9.69

18.49

25.24

Pr

1.474

18.32

1.142

2.174

0.963

18.21

0.709

1.416

1.52

7.575

6.53

6.932

8.453

Rb

16.16

11.96

13.31

20.80

15.08

13.55

11.52

19.32

1.07

91.43

8.27

81.04

103.2

S

3271!

11.39

2502

4013

2710!

13.06

2018

3312

1.20

348.0

8.27

314.9

412.4

Sb

0.854!

16.57

0.655

1.176

0.643#

16.71

0.454

0.861

1.34

0.597

6.17

0.551

0.649

Sc

1.803

15.52

1.404

2.521

1.395

16.55

1.036

1.980

1.29

10.72

7.36

9.651

11.75

Sm

0.930

15.67

0.700

1.307

0.647

20.54

0.470

0.963

1.44

5.344

6.15

4.792

5.835

Sr

38.44

16.09

29.42

55.50

33.08

14.27

24.66

42.54

1.16

197.3

6.70

174.5

219.2

Tb

0.157

29.00

0.114

0.322

0.093

20.31

0.064

0.139

1.66

0.785

5.75

0.706

0.834

Th

1.666

12.23

1.373

2.234

1.329

14.78

1.010

1.804

1.26

10.02

9.76

8.643

11.59

Ti

1124

13.42

902.0

1482

854.6

14.41

647.0

1167

1.31

4,798

5.65

4285

5146

Tl

0.203

20.17

0.136

0.289

0.171

16.64

0.128

0.211

1.20

0.645

7.80

0.567

0.754

Tm

0.074

12.99

0.059

0.103

0.053

16.87

0.038

0.075

1.39

0.405

8.44

0.335

0.440

U

0.236

13.51

0.187

0.314

0.175

14.77

0.138

0.232

1.34

1.853

8.39

1.620

2.047

V

15.28

13.67

12.32

21.18

11.75

16.86

8.160

16.41

1.30

96.96

6.08

87.37

108.1

Y

4.788

13.38

3.968

6.499

3.452

16.65

2.545

4.854

1.38

24.71

8.42

21.15

26.97

Yb

0.483

13.42

0.396

0.663

0.350

16.88

0.259

0.495

1.38

2.698

8.70

2.273

2.968

Zn

156.2!

16.36

113.52

214.0

122.8!

17.44

91.31

172.3

1.27

66.07

9.15

53.63

72.37

Fe:Ti

5.66

2.31

5.37

5.93

5.90

4.13

5.62

6.75

 

5.90

8.63

4.80

6.63

  1. The values of XAu:XAa are calculated based on the mean values in each site.
  2. XAa, Xanthoria alfredii; XAu, X. ulophyllodes.
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