云南新平铁坚油杉森林群落结构特征

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云南新平铁坚油杉森林群落结构特征

钏会艳¹^,², 贾东瑞¹, 浦江¹^,², 张翠萍², 李淑英², 周元清²^,^*(

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Structural characteristics of Keteleeria davidiana forest communities in Xinping, Yunnan

CHUAN Hui-Yan¹^,², JIA Dong-Rui¹, PU Jiang¹^,², ZHANG Cui-Ping², LI Shu-Ying², ZHOU Yuan-Qing²^,^*(

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图2. 铁坚油杉种群径级结构。I, 高度(H) < 33 cm; II, H ≥ 33 cm, 胸径(DBH) < 2.5 cm; III, 2.5 cm ≤ DBH < 7.5 cm; IV, 7.5 cm ≤ DBH < 22.5 cm; V, DBH ≥ 22.5 cm。

Fig. 2. Class structures of diameter at breast height (DBH) in Keteleeria davidiana populations. I, height (H) < 33 cm; II, H ≥ 33 cm, DBH < 2.5 cm; III, 2.5 cm ≤ DBH < 7.5 cm; IV, 7.5 cm ≤ DBH < 22.5 cm; V, DBH ≥ 22.5 cm。