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Table II

Number (N) of trees per height class in the 5 m interval classes (N (0–5 m)–N (30–35 m)) considered for Shannon’s index calculation in the experimental plots (extent 0.5 ha) in Navafría forest (N1, N2, N3, N4 and N5) and Valsaín forest (V1, V2, V3, V4, V5, V6, V7 and V8).

Study site Plot N (0–5 m) N (5–10 m) N (10–15 m) N (15–20 m) N (20–25 m) N (25–30 m) N (30–35 m)
N1 1648 4850 24 0 0 0 0
N2 0 80 2358 22 0 0 0
Navafría N3 0 8 16 122 444 90 0
N4 0 0 0 134 222 8 0
N5 0 0 0 38 240 18 8
V1 7468 252 168 24 72 68 0
V2 362 624 920 646 44 8 0
V3 0 36 346 818 122 0 0
Valsaín V4 0 0 0 40 526 120 0
V5 0 0 0 126 336 88 0
V6 308 20 0 24 172 118 10
V7 982 224 282 38 46 0 0
V8 258 286 260 48 0 0 0