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Fig. 1 | Environmental Microbiome

Fig. 1

From: In-depth characterization of denitrifier communities across different soil ecosystems in the tundra

Fig. 1

taken from the 43 sites. More information about the samples can be found in Additional file 1: Table S1. e In situ ecosystem-level nitrous oxide (N2O) and methane (CH4) fluxes measured from the 43 sites using a static, non-steady state, non-flow-through system. Negative values represent net uptake and positive net emissions. For clarity, one outlier measurement from a meadow site (660 µg N2O m–2 day–1) was removed. In panels d and e, ecosystems followed by different letters are significantly different (one-way ANOVA, p < 0.05). Samples from barren soils were not included in the ANOVA procedure due to the limited number of samples (ND: not determined)

Saana Nature Reserve, an area of mountain tundra in Kilpisjärvi, northern Finland. a Map of Fennoscandia showing the location of Kilpisjärvi and b aerial overview of the study area showing the location of the 43 sampling sites. Image provided by the National Land Survey of Finland under the Creative Commons CC BY 4.0 license. c In situ photographs of the four types of soil ecosystems investigated. d Physicochemical characterization of the soil ecosystems based on organic samples

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