新昌丹霞地貌岩生植被群落特征研究
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Studies on Plant Community Characters and on Plant Community Diversity of Rock Vegetation of Danxia Landform in Xinchang
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    摘要:

    本文以浙江新昌穿岩十九峰和千丈幽谷两处典型丹霞地貌为例,采用典型样方法对其岩生植被群落进行了调查研究。结果表明:该区内植物种类较少,共有维管束植物30科39属48种,地理成分较为复杂,主要有温带和热带成分组成,并具有明显的过渡性特征;群落类型主要有山类芦草甸Form.Neyraudia montana、晚红瓦松+藓状景天草甸Form. Orostachys erubescens +Sedum polytrichoides、薜荔灌丛Form.Ficus pumila等。无乔木层、灌木层、草本层、苔藓层物种的丰富度指数、多样性指数排列为:草本层>灌木层>苔藓层;均匀度指数为:灌木层>苔藓层>草本层。该区域群落结构不稳定,有着分化和演替的趋势。

    Abstract:

    The paper was based on the survey and the data of Rock Vegetation of Danxia Landform from Changyanshijiufeng and Qianzhangyougu in Xinchang of Zhejiang and used the Typical plots method. The results showed that: 30 families 39 genus and 48 species vascular plants were found in there. The main community types were Form. Neyraudia Montana, Form. Orostachys erubescens Sedum polytrichoides , Form. Ficus pumila, and so on. The composition of its flora was poor, the temperate and tropical floristic elements occupied a certain proportion, and with especially transitional character obvious. There was no tree layer; the species richness and diversity index of shrub layer, herb layer and moss layer were: herb layer>shrub layer>moss layer, and the evenness index was: shrub layer >moss layer>herb layer. The local rock vegetation communities were in the initial stages of succession and structural instability.

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李传磊,沈年华,王小德,沈海滨.新昌丹霞地貌岩生植被群落特征研究[J].湖南农业大学学报:自然科学版,2010,36(4):470-473.

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  • 收稿日期:2010-01-19
  • 最后修改日期:2010-03-28
  • 录用日期:2010-07-16
  • 在线发布日期: 2010-08-13
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