红海榄天然林的分枝规律  

Analysis on Crown Branching Laws of Natural Rhizophora stylosa

作　　者：周元满[1] 黄剑坚[1] 聂页[1] 刘美欣[1] 叶沛栋[1] 谭洁雯[1] 

机构地区：[1]广东海洋大学,湛江524088

出　　处：《东北林业大学学报》2013年第2期14-17,21,共5页Journal of Northeast Forestry University

基　　金：广东自然科学基金(10152408801000021);广东省科技计划项目(2008A030203007);广东海洋大学大学生创新项目(CXXL12036)

摘　　要：通过对特呈岛红海榄纯林、红海榄+白骨壤、红海榄+木榄混交林群落中红海榄树冠一级枝、二级枝的水平及垂直分布格局以及分枝角度变化规律的分析,揭示了红海榄天然林树冠的分枝结构特点。结果表明:红海榄一级枝和二级枝的水平分布均遵从均匀分布。在垂直分布上,一级枝主要分布在相对着枝深度为0.5～1.0的范围内,其分布频率随着枝深度的增加而增大;二级枝在相对着枝深度为0.5～0.6处最多,且随相对着枝深度的增加,其分布频率呈现波浪状的变化趋势。不同群落类型中红海榄一级与二级枝条分枝角度的频率分布格局均服从正态分布。The branching structure of crown was discussed by analyzing the branching pattern, branching angles of primary and secondary branches in different communities such as Rhizophora stylosa pure forest, R. stylosa＋Avicennia mixed forest, R. stylosa＋Bruguiera gymnorrhiza mixed forest in Techeng island. The results showed that the horizontal distribution of R. styosa＇ s primary and secondary braches is the uniform distribution. For the vertical location, the relative branch depth ratio of most primary branches is between 0.5 and 1.0. The total number of primary branches show a increasing tendency with the approach into the crown. Whereas, the relative branch depth ratio of secondary branches largely is between 0.5 and 0.6, which showed the tendency with ＇alternating variation. Both of the branching angles probability are with the normal distribution in depth.

关 键 词：红海榄 垂直分布 水平分布 分枝角度 

分 类 号：S758.1[农业科学—森林经理学]