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. 2018 Mar 19;9:1135. doi: 10.1038/s41467-018-03540-1

Fig. 2.

Fig. 2

Ordination plots based on principal component analysis grouping sites and variables. a Köppen climates (A) tropical, (C) temperate and (D) boreal; b intensity of agricultural use (0) no agriculture, (1) moderate grazing or mowing, (2) intensive grazing or mowing and (3) arable; c soil physical and chemical parameters. N2O emission used as passive variable. d: grid scale, VWC volumetric water content. See Supplementary Data 1 for site names