Fig. 2From: Edge effects confirmed at the clear-cut area of Korean red pine forest in Uljin, eastern KoreaA result of hierarchical clustering based on the abiotic and biotic factors (C5: −38 m, C4: −25 m, C3: −16 m, C2: −9 m, C1: −3 m, O1: 3 m, O2: 9 m, O3: 16 m, O4: 25 m, O5: 38 m). The optimal solution with k = 4 is indicated by different coloringBack to article page