Table 1 Rates of anaerobic nitrogen transformations

From: Methane stimulates massive nitrogen loss from freshwater reservoirs in India

 

Process rates (nmol N2 l−1 d−1)

Process rates (nmol N l−1 d−1)

Denitrification from 15NO2−

Anammox from 15NO2−

Anammox from 15NH4+

bDNRA from 15NO3−

cDNRA from 15NO2−

Range

N.D.−920.9a

N.D.−101.73

N.D.−50.66

N.D.−32.07

N.D.−45.89

Mean ± SD

53.2 ± 149.9

12.62 ± 22.47

3.98 ± 8.82

9.70 ± 11.16

8.71 ± 13.44

Median

13.0

3.47

0.26

6.34

2.27

N

70a

52

57

10

28

Remarks on rates

>100 nM d−1 = 6x

>100 nM d−1 = 1x

>10 nM d−1 = 7x

>10 nM d−1 = 3x

>10 nM d−1 = 8x

>50 nM d−1 = 14x

>50 nM d−1 = 5x

>5 nM d−1 = 12x

<10 nM d−1 = 30x

>10 nM d−1 = 16x

N.D.=26x

 

N.D. = 14x

 
  1. N.D. = not detectable
  2. a Excluding 5 values (1024–1886, mean 1371 ± 368 nmol N2 l−1) from Markandeya on 3 May 2007 (See Supplementary Fig. 8)
  3. b Excluding 4 values (2.94–118.45, mean 69.66 ± 50.01 nmol N l−1) from Selaulim
  4. c Excluding 5 samples (70.97–162.14, mean 116.70 ± 37.83 nmol N l−1 d−1) from Selaulim
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