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. 2020 Jan 13;7:16. doi: 10.1038/s41597-020-0356-3

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© The Author(s) 2020

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Fig. 1 — The spatial distribution of sites from cover cropping (CC), no-tillage (NT), organic farming (OF), and agro-forestry systems (AF) across the globe. The numbers in the parentheses represent the number of sites reporting data for each different conservation management method. Symbol sizes represent the number of comparisons in each site.