福建林学院学报2012，Vol.32Issue(3)：252-256,5.
无瓣海桑人工林树冠结构的分形分析
Fractal analyses on crown structure of Sonneratia apetala plantation
摘要
Abstract
Based on the artificial Sonneratia apetala forest of different ages in Fucheng, Leizhou, the fractal characteristics and twig distribution patterns were analyzed by means of box-counting dimension. The results showed that the fractal dimension of S. apetala was 1.470 6, thus revealing the canopy complexity of 5. apetala and its strong ability to occupy and utilize the ecological space. There was difference in the ability to use the space of canopy and twigs of different ages. The fractal dimension was between 1.20 -1.80,while that of a single lateral branch layer was between 1.30-1.65, which was similar to fractal dimension of the canopy .showing the self-similarity of fractal features of canopy. So far as different tide directions and lateral branch distribution of canopy were concerned, more lateral branches were distributed in the direction towards tides than those in the opposite direction. The fractal dimension of lateral branches of the No. 1 canopy was 2.004 9, and that of the No. 2 canopy was 1.5007, thus indicating the stronger ability and competitiveness in the distribution occupation of the lateral branches of the upper canopy.关键词
无瓣海桑/树冠结构/分形维数/分枝格局Key words
Sonneratia apetala/ canopy structure/ fractal dimension/ branching pattern分类
农业科技引用本文复制引用
周元满,王平,刘素青,麦楚君,冯慧敏,徐正春..无瓣海桑人工林树冠结构的分形分析[J].福建林学院学报,2012,32(3):252-256,5.基金项目
广东省科技厅科技计划资助项目(2007B030200005) （2007B030200005）
广东省自然科学基金资助项目(10152408801000021) （10152408801000021）
广东省海洋与渔业项目(A2010010-042). （A2010010-042）
