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生态学杂志 ›› 2005, Vol. ›› Issue (10): 1159-1162.

• 研究报告 • 上一篇    下一篇

古田山青冈林优势种群生态位特征

胡正华1, 于明坚2   

  1. 1. 南京信息工程大学环境科学系, 南京, 210044;
    2. 浙江大学生命科学学院, 杭州, 310028
  • 收稿日期:2004-11-21 修回日期:2005-04-26 出版日期:2005-10-10
  • 通讯作者: 胡正华,男,1974年生,博士生,讲师.目前从事植被生态学和全球变化生态学研究.发表论文近20篇.E-mail:huzhenghua@sohu.com.
  • 基金资助:
    国家自然科学基金项目(30200034);浙江省自然科学基金项目(301026);南京信息工程大学科研基金资助项目(Y410).

Niche characteristics of dominant populations in Cyclobalanopsis glauca forest in Gutian Mountain

HU Zhenghua1, YU Mingjian2   

  1. 1. Department of Environmental Sciences, Nanjing Information and Technology University, Nanjing 210044, China;
    2. College of Life Sciences, Zhejiang University, Hangzhou 310028, China
  • Received:2004-11-21 Revised:2005-04-26 Online:2005-10-10

摘要: 利用样方法进行野外调查,每个样地大小20 m×20 m。采用生态位宽度、生态位相似比例和生态位重叠值公式统计分析了古田山自然保护区青冈林优势种群生态位特征。结果表明,古田山青冈林中青冈、马银花、木荷、甜槠、麂角杜鹃等具有较大的生态位宽度,其BiBa分别为0.7974、0.6435、0.6272、0.5908、0.5783和0.7770、0.4012、0.4745、0.4171、0.4303;而光叶石楠和栲树的生态位宽度较小,BiBa仅为0.3966、0.2716和0.1441、0.0825。生态位宽度大的种群间生态位相似比例较高,如青冈与马银花、麂角杜鹃的生态位相似比分别为0.6134、0.6056;反之则低,如光叶石楠和栲树生态位相似比为0.1039。生态位重叠与生态位宽度有一定的联系,高生态位宽度种群间的生态位重叠通常较大,反之则低。

关键词: 苔藓植物, 养分含量, 磷库

Abstract: Employing sampling method,this paper studied the niche breadth,similarity and overlap of the dominant populations in Cyclobalanopsis glauca forest in Gutian Mountain Nature Reserve.The results showed that the niche breadths of C.glauca,Rhododendron ovatum,Schima superba,Castanopsis eyrei and R.latoucheae were much greater,with the Levins and Hurlbert's niche breadths 0.7974,0.6435,0.6272,0.5908,0.5783 and 0.7770,0.4012,0.4745,0.4171,0.4303,respectively.While those of Photinia glabra and Caslanopsis fargesii were smaller,with the Levins and Hurlbert's niche breadths 0.3966,0.2716 and 0.1441,0.0825,respectively.The niche similarity between the species with broad niche breadths was greater than that between the species with narrow niche breadths,e.g.,it was 0.6134 and 0.6056 between C.glauca and R.ovatum,and C.glauca and R.latoucheae,respectively,but was 0.1039 between Photinia glabra and Caslanopsis fargesii.Similar trend was observed for the niche overlaps.

Key words: Bryophyte, Nutrient content, Phosphorous pool

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