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北京百花山自然保护区树附生苔藓植物物种多样性

田晔林1,李俊清2,石爱平1,于建军1,王文和1   

  1. 1北京农学院园林学院, 北京 102206; 2北京林业大学林学院, 北京 100083)
  • 出版日期:2013-04-10 发布日期:2013-04-10

Species diversity of epiphytic bryophytes in Baihua Mountain National Nature Reserve, Beijing.

TIA Ye-Lin1, LI Jun-qing2, SHI Ai-ping1, YU Jian-jun1, WANG Wen-he1**   

  1. (1 College of Gardening, Beijing University of Agriculture, Beijing 102206, China; 2College of Forestry, Beijing Forestry University, Beijing 100083, China)
  • Online:2013-04-10 Published:2013-04-10

摘要: 北京百花山保护区树附生苔藓植物共有13科21属34种,其中优势科有丛藓科(Pottiaceae)、薄罗藓科(Leskeaceae)、绢藓科(Entodontaceae)、木灵藓科(Orthotrichaceae)和灰藓科(Hypnaceae),优势种有中华细枝藓(Lindbergia sinensis)、金灰藓(Pylaisiella polyantha)、细枝藓(L. brachyptera)、盔瓣耳叶苔(Frullania musicicola)等。海拔1200 m以下地带(14种)、海拔1400~1500 m地带(11种)以及海拔1700 m以上地带(10种)是百花山树附生苔藓植物垂直分布的3个高峰。海拔1200~1300 m为低谷(5种)。树附生植物物种Shannon指数最大的是白桦(Betula platyphylla)(1.816),最小的是核桃楸(Juglans mandshurica)(1.500);山杨(Populus davidiana)树附生植物的Pielou均匀度指数最高(0.910),辽东栎(Quercus liaotungensis)最小(0.591);辽东栎Simpson指数最大(0.335),山杨最小(0.181);辽东栎Patrick指数最大(13),山杨和核桃楸最小(7)。树附生苔藓植物物种多样性大小与生境、树皮上的裂缝、水湿条件等相关。

关键词: CO2浓缩机制, 温度, 光, CO2浓度, 营养

Abstract: An investigation was conducted on the species diversity of epiphytic bryophytes in Baihua Mountain National Nature Reserve, Beijing in 2004-2010. A total of 495 specimens were recorded, belonging to 34 species, 21 genera, and 13 families, among which, Pottiaceae, Leskeaceae, Entodontaceae, Orthotrichaceae, and Hypnaceae were the dominant families, and Lindbergia sinensis, Pylaisiella polyantha, L. brachyptera, and Frullania musicicola were the dominant species. There were three peaks of the vertical distribution of the epiphytic bryophytes, i.e., altitude <1200 m (14 species), altitude 1400-1500 m (11 species), and altitude >1700 m (10 species), and only 5 species were distributed at altitude 1200-1300 m. Shannon index was the highest for Betula platyphylla (1.816) and the smallest for Juglans mandshurica (1:500), Pielou evenness index was the highest for Populus davidiana (0.910) and the smallest for Q. liaotungensis (0.591), Simpson index was the highest for Q. liaotungensis (0.335) and the smallest for P. davidiana (0.181), and Patrick index was the highest for Q. liaotungensis (13) and the smallest for P. davidiana and J. mandshurica (7). The species diversity indices of the epiphytic bryophytes were related to habitat, bark crack, and water availability.