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周进, 陈家宽. 湖北斧头湖浮叶水生植物群落学研究──Ⅱ.荇菜群落的结构[J]. 水生生物学报, 1996, 20(1): 49-56.
引用本文: 周进, 陈家宽. 湖北斧头湖浮叶水生植物群落学研究──Ⅱ.荇菜群落的结构[J]. 水生生物学报, 1996, 20(1): 49-56.
Zhou Jin, Chen Jiakuan. PHYTOCOENOLOGICAL STUDIES ON FLOATING-LEAVED ANCHORED AQUATIC PLANTS IN FUTOUHU LAKE, HUBEI PROVINCE──Ⅱ. THE STRUCTURE OF COMM. NYMPHOIDES PELTATA[J]. ACTA HYDROBIOLOGICA SINICA, 1996, 20(1): 49-56.
Citation: Zhou Jin, Chen Jiakuan. PHYTOCOENOLOGICAL STUDIES ON FLOATING-LEAVED ANCHORED AQUATIC PLANTS IN FUTOUHU LAKE, HUBEI PROVINCE──Ⅱ. THE STRUCTURE OF COMM. NYMPHOIDES PELTATA[J]. ACTA HYDROBIOLOGICA SINICA, 1996, 20(1): 49-56.

湖北斧头湖浮叶水生植物群落学研究──Ⅱ.荇菜群落的结构

PHYTOCOENOLOGICAL STUDIES ON FLOATING-LEAVED ANCHORED AQUATIC PLANTS IN FUTOUHU LAKE, HUBEI PROVINCE──Ⅱ. THE STRUCTURE OF COMM. NYMPHOIDES PELTATA

  • 摘要: 本研究从三方面考察了斧头湖荇菜群落的结构,并对其进行了周年观察。荇菜群落内共有13种植物,可归为5个生活型11个生长型,其物种组成较贫乏。浮叶水生植物群落的物种结构较挺水植物群落简单。荇菜群落呈带状和斑块状分布,荇菜种群的群聚规模从0.08-0.64m2不等。群落的垂直结构分两层:浮叶植物层和沉水植物层,无发达的地下根茎系统和水上层。群落内荇菜种群在5月下旬达到最大现存量和生殖高峰,之后在一个低的水平波动。群落内其它优势种间的更替现象十分明显。

     

    Abstract: The structure of Comm. Nymphoides peltata was investigated monthly and for a whole year. The community is composed of 13 plant species which belong to 5 life forms and 11 growth forms. The community shows zonation and patchy distribution, while the distribution of N.Peltata population are contagious, varying from 0.08m2 to 0.64m2. The vertical structure of the community has two layers only: floating-leaved hydrophyte layer and submerged hydrophyte layer. Advanced hydrophyte layer was not observed above the water, nor was an advanced root or rhizome system below the substrate. The population of N. peltata reached peaks in standing crop and in sexual reproduction in late May. Then the population declined and fluctuated around a low level. The replacement of dominant species by another is obviously observed in the community.

     

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