Table 2 Station summary of biogeochemical rates.

From: Biotic and abiotic controls on co-occurring nitrogen cycling processes in shallow Arctic shelf sediments

Station

n

D 15

D 14

Dn (rate)

Dn (%)

A 14

ra

DNRA14

SOD

CBL11

6

7.8±0.5

7.3±0.4

5.5±0.3

75±0.4

0.24±0.03

3.2±0.4

0.09±0.06

−207±7.2

CBL13

4

20.4±3.5

20.4±3.0

16.1±2.2

79±0.7

0.29±0.05

1.4±0.1

0.53±0.18

−436±49.5

H17

6

6.9±1.1

5.2±0.7

3.6±0.5

69±3.1

0.15±0.02

2.9±0.4

0.25±0.13

−230±17.1

H29

4

1.5±0.5

4.5±0.5

4.1±0.4

92±2.3

0.10±0.04

2.4±1.6

0.11±0.12

−102±26.8

H33

4

18.6±4.0

11.7±1.8

6.7±0.9

58±3.6

0.33±0.08

3.2±1.1

0.18±0.09

−548±28.4

  1. Rates (mean±s.e.m.) of denitrification of 15NO3− (D15), denitrification of 14NO3− (D14), the proportion of D14 that is coupled to nitrification (Dn), anammox (A14), proportion of N2 produced by anammox (ra), dissimilatory nitrate reduction to ammonium (DNRA) and sediment oxygen demand (SOD). D15, D14, Dn (rate), A14 and DNRA14 expressed as μmol N m−2 h−1. SOD is expressed as μmol O2 m−2 h−1. Dn(%) and ra are percentages.
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