Fig. 3: Relative changes in environmental variables due to water table (WT) decline in pristine peatlands.

E_h (soil redox potential), SWC (soil water content), T_s (soil temperature), O₂ (oxygen), Q₁₀ (temperature sensitivity coefficient), SOC (soil organic carbon concentration), TN (total nitrogen concentration), SP (soil phosphorus concentration), BD (soil bulk density), pH, clay content, \({{{{\rm{NH}}}}}_{4}^{+}\) (soil ammonium concentration), soil \({{{{\rm{NO}}}}}_{3}^{-}\) (soil nitrate concentration), MBC (microbial biomass carbon), MBN (microbial biomass nitrogen), DOC (dissolved organic carbon), DON (dissolved organic nitrogen), DTP (dissolved organic phosphorus) and BGB (belowground root biomass). The larger solid circles and horizontal bars denote the weighted means of relative changes and their 95% confidence intervals. The smaller circles and numbers indicate individual relative changes due to WT decline and the number of data points, respectively. The asterisks *, **, *** indicate significance at the levels of p < 0.05, 0.01 and 0.001, respectively, and n.s. indicates no significance (for details, see Meta-analysis in Methods). E_h was denoted as the net change (treatment – control, in mV) due to WT decline (for details, see Meta-analysis in Methods).