海南山地雨林，可理解为群系组，其下根据综合特征分类，以优势种命名可划分为婆罗椎栗、吊皮栲、陆均松、尖峰栎、龙楠等13个群系（或混合群落）。
The mountain rain forest can be considered as a formation group, and under this formation group 13 formations (mixed community) are recognized according to the dominant species.
结果表明：丝栗栲群落及其优势种群个体数、群落物种数和种对级的分享度随高度级增加都呈下降趋势；
The results indicated that the individual number of the community and its dominant, species number and sharing degree decreased as highness classes raised;
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