Erratum: Potential microbial contamination during sampling of permafrost soil assessed by tracers.

The original HTML version of this Article contained formatting errors in the “Gravimetric water (ice) content (%)” row. The correct Table appears below.

Table 1

Physical-chemical parameters of the permafrost cores.

	Zackenberg	Adventdalen 1	Adventdalen 2
pH	6.7	5.1	6.8
Total C (%)	2.4 ± 0.001	4.5 ± 0.061	2.24
Total N (%)	0.16 ± 0.013	0.33 ± 0.004	0.14
DOC (mg L−1)	16.0 ± 0.67	12.7 ± 0.24	60.3
NH4+ (mg L−1)	18.9 ± 6.4	1.5 ± 0.42	5.1
NO3− (mg L−1)	46.3 ± 0.4	0.11 ± 0.021	0.202
Gravimetric water (ice) content (%)	27.4	44.1	59.5
Soil texture (% of clay (<2 μm); silt (2–63 μm); sand (>63 μm))	7.6; 74.4; 18.0	5.5; 47.6; 46.9	4.1; 68.4; 27.5

The ± symbols indicate standard error of the mean, n = 3. Numbers without ± are measurements on a single replicate, n = 1, because too little soil was obtained to perform measurements on triplicates.

This error has been corrected in the HTML version of the Article; the PDF version was correct at the time of publication.