Fig. 5 RDA of the relationships among plant traits, soil properties, and their stoichiometric characteristics for different plant species. TN, soil total nitrogen; TP, soil total phosphorus; SOC, soil organic carbon;S-C/N, soil C/N ratio; S-C/P, soil C/P ratio; S-N/P, soil N/P ratio; PH, soil pH; BD, bulk density; e , total porosity; PTN, plant total nitrogen; PTP, plant total phosphorus; POC, plant organic carbon; P-C/N, plant C/N ratio; P-C/P, plant C/P ratio; P-N/P, plant N/P ratio; RTN, root total nitrogen; RTP, root total phosphorus; ROC, root organic carbon; R-C/N, root C/N ratio; R-C/P, root C/P ratio; R-N/P, root N/P ratio; H, Plant height; Tc, total coverage; Ab, aboveground biomass; Rb, root biomass; B, total biomass.