地理学报 ›› 2003, Vol. 58 ›› Issue (2): 186-192.doi: 10.11821/xb200302004

• 山地研究 • 上一篇    下一篇

小五台山亚高山草甸生物多样性的空间格局

黄晓霞,江源,刘全儒,黄秋如,戴泉玉   

  1. 北京师范大学资源科学研究所,北京师范大学中国生态资产评估研究中心,北京师范大学环境演变与自然灾害教育部重点实验室,北京 100875
  • 收稿日期:2002-07-11 修回日期:2002-10-28 出版日期:2003-03-25 发布日期:2010-09-09
  • 作者简介:黄晓霞 (1978-), 女, 博士生。通讯作者:江源jiangy@bnu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(40071002)

The Spatial Pattern of Biodiversity in Subalpine Meadow on Mt. Xiaowutai

HUANG Xiaoxia, JIANG Yuan, LIU Quanru, HUANG Qiuru, DAI Quanyu   

  1. Institute of Resources Science, Beijing Normal University; China Ecological Capital Assessment Research Center, Beijing Normal University; Key Lab of Environmental Change and Natural Disaster, Ministry of Education, Beijing 100875, China
  • Received:2002-07-11 Revised:2002-10-28 Online:2003-03-25 Published:2010-09-09
  • Supported by:

    National Natural Science Foundation of China, No. 40071002

摘要:

在野外考察获取第一手资料的基础上,主要采用Shannon-Weaver指数和S?rensen指数对小五台山亚高山草甸植被的植物生物多样性及其空间变化格局进行了分析和研究。主要结论如下:1) 海拔高度对植物生物多样性影响非常明显,海拔2300 m和2700 m左右分别既是α多样性也是β多样性出现明显变化的地段。2) 不同坡向条件下群落的α多样性表现为东坡>西坡>南坡>北坡;而S?rensen指数分析表明,当坡向变化时,β多样性较高。3) 山坡中部特别是中下部具有较高的α多样性,而β多样性较低,坡面上β多样性的大小主要取决于坡面所处海拔高度的范围。

关键词: 小五台山, 亚高山草甸, 生物多样性, 空间格局

Abstract:

Based on the data from field survey in subalpine meadow on Mt. Xiaowutai, Hebei Province, α diversity and β diversity of the meadow were analyzed through Shannon-Weaver index and S?rensen index analysis in this paper. The results are as follows: 1) Both diversity indexes change obviously with elevation, and α diversity and β diversity change dramatically at the elevations of around 2300 m and 2700 m. 2) The order of α diversity index, from high to low, is Eastern > Western > Southern > Northern. β diversity reflected by S?rensen index increases when slope exposure changes. 3) Higher α diversity, but lower β diversity is observed on the mid-slope or the mid-bottom slope. The value of β diversity depends mostly on the range of elevation, normally between 2300 m and 2750 m, the β value reaches the highest.

Key words: Mt. Xiaowutai, subalpine meadow, biodiversity, spatial pattern