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CAS Workshop on Ecosystem Succession Theory and Practice of Ecological Restoration 广东古兜山自然保护区蕨类植物群落学研究 严岳鸿
秦新生
邢福武 （中科院华南植物研究所，广州
510650） 摘要：通过对广东新会古兜山自然保护区蕨类植物群落的调查，报道该地蕨类植物群落的种类组成、区系特点及其种群的多度、频度和重要值等数量特征。研究结果表明：古兜山的蕨类植物种类组成比较丰富，具有典型的南亚热带植物区系特点，由于高度异质性的随机环境条件对蕨类植物种群分布的强烈影响，所有的数量特征均表现出明显的正态分布规律。热带亚洲植物区系对古兜山蕨类植物区系成分有强烈影响，群落中以崇澍蕨、黑桫椤等热带亚洲分布类型的蕨类植物为主。并探讨了蕨类植物生长型与环境条件的相互作用机制。 关键词：古兜山自然保护区；蕨类植物；群落学 The studies on
the ferns community in Gudoushan reserve, Guangdong Yan
Yuehong Qin Xinsheng
Xing Fuwu （South China Institute of Botany, Chinese Academy of
Sciences, Guangzhou 510650,
China） Abstract: The physiognomy and quantity characteristic of ferns communities are reported first，which are in Gudoushan Mountain Reserve , Xinhui, Guangdong. The results shows that the ferns in Gudoushan Mountain Reserve are very rich and the composition of tropical Asia distribution pattern is dominant on all of the ferns, and the quantity characteristic, such as abundance, frequency and important value (I.V.), shows the visible form of normal curve，result from the influence of heterogeneous random environment. The paper has shown that the strong impact on the flora of ferns in Gudoushan Reserve from the composition of tropical Asia by the methods of community, the IV of which such as Cheniopteris harlandii , Gymnospaera podophylla, et al., is higher than others. And the mechanism between growth type and environment is discussed by the analysis of the physiognomy of ferns. Key words: Pteridophytes; coenology; Gudoushan Reserve; Guangdong
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