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热带珍稀树种陆均松幼苗的更新现状及其影响因素

作者：张涛; 许涵; 李艳朋*; 林明献; 陈巧; 杨繁; 王灵; 何声强
来源：林业与环境科学, 2023, 39(01): 12-21.

摘要

为了摸清陆均松Dacrydium pectinatum幼苗的更新现状及其影响因素，文章通过对海南吊罗山、霸王岭和尖峰岭地区的陆均松天然群落及其幼苗的更新状况进行调查，运用方差分析和回归分析，探究了影响陆均松幼苗数量的生物和非生物因子。结果表明：（1）吊罗山和霸王岭地区的陆均松存在一定程度的更新限制，而尖峰岭地区的陆均松更新能力极低。（2）陆均松的胸径大小对其幼苗更新具有最好的解释能力，主要表现为中等胸径的母树周围具有更高的幼苗数量；而在包括陆均松生物学特性和陆均松母树所处的环境条件等所有影响因子中，坡度对幼苗更新数量有最好的解释能力，主要表现为幼苗数量随着坡度的增加而减少。

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更新时间：2024-03-19 07:03
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