Fig. 2
From: Variation in irradiance, soil features and regeneration patterns in experimental forest canopy gaps
Distribution of sampling plots (n = 156) in the medium gap and the small gap based on the indirect (ISF %) and direct (DSF %) site factor values. The dashed lines denote the median values of DSF and ISF that were used as thresholds for the assignment of the plots to four gap positions (A, B, C and D): M DSF = 31.2 %, M ISF 1 = 17.5 %, M ISF 2 = 33.7 %