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Table 3 Elemental and isotopical composition of larch organs

From: Zn isotope fractionation in a pristine larch forest on permafrost-dominated soils in Central Siberia

Samples

Environment and date

[Zn] 1 μg/g

[C] 2 %

[N] 2 %

δ 66 Zn(‰) 3

δ 66 Zn(‰) 4

δ 67 Zn(‰) 3

δ 68 Zn(‰) 3

Needles

NF, June 7

38.4 ± 1.9

48.2 ± 0.8

2.66 ± 0.22

0.06± 0.05

−0.23

0.17± 0.09

0.17± 0.08

Needles

NF, July 18

21.1 ± 6.9

48.6 ± 0.3

1.13 ± 0.09

n/a

n/a

n/a

n/a

Needles

NF, August 28

16.1 ± 3.6

48.7 ± 0.2

1.01 ± 0.12

0.22± 0.01

−0.07

0.39± 0.01

0.48± 0.09

Needles

NF, Sept 10

11.8 ± 2.0

48.7 ± 1.2

0.23 ± 0.01

0.27± 0.08

−0.02

0.37± 0.14

0.46± 0.18

Needles

SF, June 7

36.7 ± 13.6

47.8 ± 0.4

3.06 ± 0.40

0.20± 0.01

−0.09

0.37± 0.04

0.44± 0.04

Needles

SF, July 18

12.6 ± 5.4

48.6 ± 0.5

1.47 ± 0.10

n/a

n/a

n/a

n/a

Needles

SF, August 28

14.5 ± 4.8

49.1 ± 0.4

1.21 ± 0.17

0.37± 0.03

0.08

0.59± 0.06

0.75± 0.07

Needles

SF, Sept 10

13.3 ± 3.7

48.7 ± 0.8

0.31 ± 0.11

0.28± 0.06

0.00

0.43± 0.10

0.56± 0.12

Needles

PB, June 7

36.1 ± 5.7

48.4 ± 0.5

2.23 ± 0.44

−0.21± 0.10

−0.5

−0.22± 0.16

−0.35± 0.20

Needles

PB, July 18

20.9 ± 2.4

48.2 ± 0.8

1.27 ± 0.10

n/a

n/a

n/a

n/a

Needles

PB, August 28

13.3 ± 1.3

49.8 ± 0.3

1.04 ± 0.05

−0.15± 0.05

−0.44

−0.16± 0.07

−0.24± 0.09

Needles

PB, Sept 10

18.2 ± 7.0

48.8 ± 0.7

0.26 ± 0.02

0.13± 0.09

−0.16

0.21± 0.12

0.26± 0.18

Sapwood

SF, Sept 10

7.0 ± 2.3

48.4 ± 1.9

0.08 ± 0.01

0.47

0.18

0.62

0.92

Wood (bulk) 5

SF, Sept 10

4.8 ± 3.2

47.1 ± 3.3

0.10 ± 0.05

0.36

0.07

0.44

0.72

Bark

SF, Sept 10

23.3

51.9

0.15

0.73

0.44

1.14

1.48

Heartwood

PB, Sept 10

7.7 ± 2.4

43.9 ± 4.4

0.05

−0.06

−0.35

−0.17

−0.22

Sapwood

PB, Sept 10

15.8 ± 16.6

44.3 ± 3.4

0.07 ± 0.02

−0.15

−0.44

−0.24

−0.36

Wood (bulk) 5

PB, Sept 10

10.0 ± 7.1

47.1 ± 3.3

0.09 ± 0.02

0.00

−0.29

−0.01

−0.07

Fine roots (<2 mm) n = 5

SF, Sept 10

15.2

n/a

 

0.48

0.19

0.50

0.85

Phloem

riparian zone, Sept 10

60.5

n/a

 

0.67

0.38

0.90

1.21

  1. NF, SF and PB stand for North-facing slope, South-facing slope, and Sphagnum peatbog, respectively. The ± uncertainty is 2 s.d, where n = 5 to 10 for concentrations and 2 to 3 for isotopes. n/a stands for “non analyzed”.
  2. 1: Zn concentrations were measured on various composite samples; raw data are available in Viers et al. [42].
  3. The Zn concentration is the average and the error the standard deviation.
  4. 2: C and N concentrations are from Prokushkin (in prep.).
  5. 3: Relative to the JMC Lyon (3-0749 L).
  6. 4: Relative to the IRMM-3702 (Moeller et al., ref. [56]). When no deviation standard is reported it signifies that only one sample was measured.
  7. 5: Wood bulk indicates heartwood + sapwood (= integral wood).