only marginally significantp = 0.08
In our model-based analysis ( Supplementary Table 5 ), the biocrust type treatment was only marginally significant ( p = 0.08), and the only significant pairwise difference between treatments was for moss-lichen biocrusts (μ ± 1 SD = 0.004 ± 0.002 nmol N 2 O m –2 s –1 , n = 20) vs. control samples (difference ± 1 SE = 0.0011 ± 0.0005 nmol N 2 O m –2 s –1 ).