地理科学

地理科学 ›› 2002, Vol. 22 ›› Issue (3): 349-354.doi: 10.13249/j.cnki.sgs.2002.03.349

• 论文 • 上一篇    下一篇

佛坪自然保护区植物群落物种多样性与海拔梯度的关系

岳明1, 张林静1,2, 党高弟3, 辜天琪1   

  1. 1. 西北大学秦岭生物多样性研究中心, 陕西 西安 710069;
    2. 山西师范大学生物系, 山西 临汾 041004;
    3. 佛坪国家级自然保护区管理局, 陕西 佛坪 723400
  • 收稿日期:2001-04-28 修回日期:2001-09-25 出版日期:2002-05-20 发布日期:2002-05-20
  • 基金资助:
    林业部佛坪国家级自然保护区综合考察项目、西北大学校内基金(99NW51)。

The Relationships of Higher Plants Diversity and Elevation Gradient in Foping National Reserve

YUE Ming1, ZHANG Lin-jing1,2, DANG Gao-di3, GU Tian-qi1   

  1. 1. Biology Department and Qinling Biodiversity Centre, Northwest University, Xi’an, Shaanxi 710069;
    2. Biology Department of Shanxi Normal University, Linfen, Shanxi 041004;
    3. Foping Nature Conservation, Foping, Shaanxi 723400
  • Received:2001-04-28 Revised:2001-09-25 Online:2002-05-20 Published:2002-05-20

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210 | 54

摘要： 用多元统计分析方法研究了佛坪自然保护区植物群落物种多样性及群落各生长型多样性特征沿海拔梯度的变化。结果表明:1) 植物群落的Shannon指数与Simpson指数及物种丰富度与海拔梯度均呈显著负相关关系;2) 乔木层的物种多样性沿海拔梯度的变化则体现了"中间高度膨胀"的规律,即中等海拔高度上多样性高而低海拔和高海拔多样性较低;3) 灌木层丰富度指数在1600~1700m之间有个很不明显的峰值,而其它4个指标沿海拔呈单调的下降趋势;4) 草本层植物多样性呈先降后升的趋势,在中等海拔高度较低。

Abstract: The relationships between species diversity indices of plant in communities and altitude gradient of Foping National Reserve were studied using multiple regression analysis. The results are as follows: 1) The Shannon index, Simpson index and species richness of communities are negatively related to latitude significantly. 2) The species diversity of arbor layer showing a rule of "Mid-altitude bulge" with change of altitude, means that it is higher in intermediate altitude while lower in lower and higher altitude. 3) There is a no obvious peak value of species richness of shrub layer at Alt. 1600-1700m, while the other four diversity indices decreased monotonously with altitude. 4) All of the species diversity indices of herb layer are lower at intermediate altitude.

中图分类号: 

  • Q948.5