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bAbbreviations: WHC, water holding capacity after 48 hours (Supplementary Fig. S3); Nmin_initial (KCl), initially extractable amount of mineral N (Fig. 1A); Nmin_leached, amount of mineral N drained with the WHC determination (Fig. 1B); %Nleached, amount of mineral N leached (WHC) in percent of the initial, KCl-detectable amount of Nmin (Fig. 1B, large blue dots).
cF values in brackets refer to the diamonds in Fig. 1B (nitrate loading of BCcomp not considered).