湿地公园苔藓植物群落特征及其与环境因子的关系——以贵阳市为例
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国家自然科学基金项目(31960328)资助


Characteristics of Bryophyte Community in Wetland Park and Its Relationship with Environment Factors: A Case Study of Guiyang City
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    摘要:

    苔藓植物作为湿地公园的植物组成成分之一,开展其群落构建的研究,可为湿地生态系统管理和生物多样性维持机制提供重要理论依据。贵阳湿地和苔藓植物资源丰富,以贵阳市3个典型湿地公园为对象,研究苔藓植物的物种分布特征和环境因子,采用双向指示种分析(TWINSPAN)和典范对应分析(CCA)方法对苔藓植物群丛进行数量分类和排序。结果表明, 贵阳市3个典型湿地公园有苔藓植物17科28属66种,其中,丛藓科(Pottiaceae)、灰藓科(Hypnaceae)、青藓科(Brachytheciaceae)为优势科;3个湿地公园苔藓植物β多样性差异较小,物种相似度高,丰富度低。苔藓植物分布的生境类型主要为石生与树生;生活型以交织型和丛集型为主。苔藓植物群丛类型可以分为13类,均有各自的特征,其物种组成和群落特征能较好的反映群丛类型与环境之间的关系,3个湿地公园的生境具有相似性。CCA分析结果表明,影响湿地公园中苔藓植物群丛分布的首要环境因子是海拔,其次是空气湿度,再次是郁闭度,光照也有一定影响。

    Abstract:

    As one of the plant components of wetland park, the study of bryophyte community construction can provide important theoretical basis for wetland ecosystem management and biodiversity maintenance mechanism. Guiyang is rich in wetland and bryophyte resources. Based on three typical wetland parks in Guiyang, the species distribution of bryophytes and its relationship with environmental factors were studied. TWINSPAN analysis and canonical correspondence analysis (CCA) were used to quantitatively classify and rank the bryophytes community. The results showed that there were 17 families, 28 genera and 66 species of bryophytes in three typical wetland parks, among which Pottiaceae, Hypnaceae and Brachytheciaceae were dominant families. There was little difference in β diversity of bryophytes among the three wetland parks, with high species similarity and low richness. The habitats of bryophytes were mainly lithophyte and arboreal. The life forms were mainly interleaved and clustered. Bryophyte community could be divided into 13 types, all of which had their own characteristics, and their species composition and community characteristics could better reflect the relationship between the bryophyte type and environment factors. The habitats of the three wetland parks were similar. The results of CCA analysis showed that the primary environmental factor affecting the distribution of moss clusters in wetland park was altitude, followed by air humidity, canopy density, and light also had a certain effect. These provide a scientific basis for the conservation of bryophyte diversity in wetland park.

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段礼鑫,王秀荣,廖芳,谢木妍.湿地公园苔藓植物群落特征及其与环境因子的关系——以贵阳市为例[J].热带亚热带植物学报,2024,32(5):589~600

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  • 收稿日期:2023-04-22
  • 最后修改日期:2023-08-17
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  • 在线发布日期: 2024-09-29
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