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当前位置: 首页 > 文章 > 海南霸王岭卷萼兜兰种群分布格局研究 热带农业工程 2009,33 (4) 18-21
Position: Home > Articles > Distribution Pattern of Paphiopedilum appletonianum in Bawangling Mountain in Hainan,China Tropical Agricultural Engineering 2009,33 (4) 18-21

海南霸王岭卷萼兜兰种群分布格局研究

作  者：
陈福;王进强;宋希强
单  位：
海南大学热带园艺植物资源与遗传改良教育部重点实验室;海南昌江霸王岭国家级自然保护区管理局
关键词：
卷萼兜兰;种群;霸王岭;分布格局
摘  要：
运用样方调查法对霸王岭卷萼兜兰进行调查,采用扩散系数C、CA指标、平均拥挤度M*、丛生指标I、聚块性指数M*/M、负二项指标K等聚集度指标研究卷萼兜兰种群的分布格局类型与聚集强度。结果表明:霸王岭卷萼兜兰所处群落以黄牛奶树、纤枝蒲桃等为优势树种;不同取样尺度下,卷萼兜兰种群的分布格局类型均表现为聚集分布;其在1m×1m小取样尺度下聚集强度较强。并对卷萼兜兰种群格局在各种因素影响下的变化原因进行了讨论,认为卷萼兜兰种群格局呈聚集分布的最主要原因是由其本身的生物特性决定。
译  名：
Distribution Pattern of Paphiopedilum appletonianum in Bawangling Mountain in Hainan,China
作  者：
CHEN Fu WANG Jinqiang SONG Xiqiang(1 Ministry of Education Key Laboratory for Tropical Horticultural Plant Resources and Genetic Improvement,Hainan University,Danzhou,Hainan 571737;2 Bawangling National Natural Reserve,Changjiang,Hainan 572722;)
关键词：
Paphiopedilum appletonianum(Gower) Rolfe ;population ;Bawangling ;distributionpattern
摘  要：
The populations of Paphiopedilum appletonianum in Bawangling Mountain in Hainan,China were inventoried by using the quadrat sampling method,and their spatial distribution pattern and aggregating intensities were studied with some aggregation indexes such as dispersion coefficient(C),index of Cassie(CA),mean crowding(M*),index of clumping(I),index of patchiness(M*/M),negative binomial parameter K,and so on.The results showed that the populations of P.appletonianum in Bawangling were distributed on the communities with such dominant tree species as Symplocos laurina and Syzygium stenocladum,Under different sampling sizes,the populations of P.appletonianum were all distributed as aggregation,and the aggregation of the populations was higher under the sampling size of 1 m×1 m.Finally,various factors affecting the changes of distribution pattern and aggregation intensity in P.appletonianum populations were discussed,and it was considered that aggregation distribution of P.appletonianum was mainly due to its biological characteristics.

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