摘要
马缨杜鹃是百里杜鹃森林公园长绿阔叶林群落组成中主要的建群种和优势种。本文在野外调查的基础上对马缨杜鹃种群结构和空间分布格局进行了分析,结果表明马缨杜鹃的空间分布格局主要为集群分布,但随着年龄的增长,种内种间竞争加剧,种群密度下降,分布格局会由集群分布变为随机分布。马缨杜鹃种群在不同群落中表现出一定程度的多元化,即在某些群落中它亦可以一种稳定种群的形式存在,部分地段表现出为衰退型种群,特别是有性繁殖更新层的缺失使之成为一种不连续种群。为了这一特殊自然景观的可持续发展,可以尝试人工干预该种群的顺利更新和长期稳定。
Rhododendron delavayi is an important constructive and dominant species of evergreen and broadleaf forest in Bali Azalea Forest Park. Based on field survey, the structure and distribution patterns of Rhododendron delavayi population are studied in the paper,the results show that the distribution pattern of Rhododendron delavayi populations is mainly aggregated pattern, but with ages increasing ,the intensive competition interspecies and between species makes individuals decrease and distribution pattern becomes random. Rhododendron delavayi population in various communities could be decayed or stable ones. Especially the shortage of the sexual regeneration of Rhododendron delavayi leads the population to an incomplete population. We may try to use artificial intervention methods to improve the population＇s smooth regeneration and stabilization in order to maintain it＇s sustainable development.
出处
《贵州科学》
2005年第3期46-49,共4页
Guizhou Science
基金
国家农业成果转化项目
贵州省攻关项目部分内容
关键词
马缨杜鹃
种群
集群分布
更新
R. delavayi
population
aggregated pattern
regeneration
