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北京山区野生维管束植物区系

邢韶华;林大影;袁秀;肖雁青;赵勃;崔国发   

  1. 北京林业大学自然保护区学院, 北京 100083
  • 收稿日期:2005-08-12 修回日期:2006-03-10 出版日期:2006-06-10 发布日期:2006-06-10

Flora of wild vascular bundle plants in mountainous area of Beijing

XING Shaohua; LIN Daying; YUAN Xiu; XIAO Yanqing;ZHAO Bo;CUI Guofa   

  1. College of Nature Conservation, Beijing Forestry University, Beijing 100083, China

  • Received:2005-08-12 Revised:2006-03-10 Online:2006-06-10 Published:2006-06-10

摘要: 在北京山区共有高等植物1166种(含变种、变型),隶属于122科、503属;其中蕨类植物17科、26属、62种 (变种),裸子植物 3科、7属、7种;双子叶植物88科、371属、863种(变种);单子叶植物14科、99属、234种(变种)。优势科属的统计表明,本区维管束植物一方面集中于菊科、蔷薇科等一些世界性大科之中,同时又向少种科、单种科分散。在北京山区共调查到1个单种科,6个单属科。本区分布的单种属和寡种属共72个,其中单种属有31个。种子植物属的分布区类型占有全国植物科的15个分布区类型,以温带成分的属为主,其占种子植物总属数的55.34%;其次是泛热带分布类型,共计60属,占总属12.6%,中国特有分布的属有11属,占总属数的2.31%,所占比例较小。

关键词: 森林土壤种子库, 天然更新, 时空格局

Abstract: In Beijing mountainous area, there are 1166 species of vascular bundle plants, belonging to 122 families and 503 genera, among which, there are 62 species of fern plants, belonging to 17 families and 26 genera, 7 species of gymnosperm, belonging to 3 families and 7 genera, 863 species of dicotyledon, belonging to 88 families and 371 genera, and 234 species of monocotyledon, belonging to 14 families and 99 genera. The statistics of dominant families and genera showed that the species fastened on several cosmopolitan families, such as composite and rose, and on the other hand, distributed to single-species or few-species family. There are 1 single-species family and 6 single-genus families in Beijing mountainous area, and 72 single-species and few-species genera are found in the area, including 31 single-species genera. In all 477 genera, there are 264 genera of seed plants belonging to temperate distribution, accounting for 55.34%. The second is pan-tropic distribution type, including 60 genera and accounting for 12.43%, and endemic China distribution type only has 11 genera, occupying 2.31% of the total.

Key words: Forest soil seed bank, Natural regeneration, Temporal and spatial pattern