| 摘要: |
| 文章采用网格取样技术结合线路调查法，在大屏嶂森林公园次生常绿阔叶林内设置9个样地，对样地内共26个树种的乔木立木进行调查，并且初步分析构筑型特征。研究结果显示：（1）树木冠形主要有卵形、圆球形、圆柱形、伞形和圆椎形5种基本类型，以圆球形冠形的树木种类比例最高，占统计总数的30%；(2)乔木冠幅多数属于中冠幅类型，并存在较小的分枝角度，其中以45°的比例最高，达到30.8%，其次是30°，占23.1%；(3)树木的分枝级数最大为7级，而以4级分枝的树种最多，占统计总数的38.5%；（4）树高与枝下高以及胸径的关系均符合幂函数关系，并且均呈正相关。 |
| 关键词: 大屏嶂森林公园 乔木树种 构筑型 |
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| Architecture Characteristics of Tree Species in Secondary Evergreen Broad-leaved Forest of Dapingzhang Forest Park |
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Lin Yushu,Yan Chaodong,Lin Guantu and Hu Ke
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Dapingzhang Forest Park,Dongguan,College of Natural Resources and Environment,South China Agricultural University,Dapingzhang Forest Park,Dongguan
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| Abstract: |
| Based on investigations of 26 tree species in 9 plots of secondary evergreen broad-leaved forest in Dapingzhang Forest Park, this paper primarily analyzed architecture characteristics of trees through the methods of grid sampling technique and route surveys in the field. The results showed that: (1) There are five basic types of crown profile: oval, spherical, cylindrical, umbellate and circular. The proportion of tree species with spherical crown is the highest, accounting for 30% of the total；(2) The majority of trees belonging to the medium-sized crown type, and there is a small branching angle, the 45 degrees highest proportion reached 30.8%, followed by 30 degrees, accounting for 23.1%; (3) The maximum number of branches was seven, while that of branches with four branches was the largest, accounting for 38.5% of the total; (4)The relationship between tree height, under-branch height and DBH was in the power function, and all of them had positive correlation. |
| Key words: Dapingzhang Forest Park tree species architecture |
