Figure 1
From: The strength of soil-plant interactions under forest is related to a Critical Soil Depth
Spearman rank correlations among all measured soil properties (stable and dynamic) of all 27 Comparative Study Plots. Blue and red colors symbolize positive and negative correlations, respectively. (A) depth increment 0–20 cm, (B) depth increment 20–50 cm and (C) depth increment 0–50 cm. Those three soil depth columns are shown as example of all six depth increments investigated.
