干旱区研究

干旱区研究 ›› 2012, Vol. 29 ›› Issue (1): 81-85.

• 植物生态 • 上一篇    下一篇

乌斯吐自然保护区乔木格局及草本多样性研究

王永胜，李钢铁，岳永杰， 李清雪，邹受益   

  1. 内蒙古农业大学，内蒙古 呼和浩特 010019
  • 收稿日期:2010-11-25 修回日期:2011-04-19 出版日期:2012-01-15 发布日期:2012-02-27
  • 通讯作者: 岳永杰.E-mail：wolongyue@126.com
  • 作者简介:王永胜（1985-），河北承德人，硕士，主要从事水土保持与荒漠化防治方面的研究.E-mail：wangyongshengnan@163.com
  • 基金资助:

    国家自然基金项目（30860234）；国家林业局“948”项目（2007-4-13）；内蒙基金项目（2009BS0507）

Study on Spatial Distribution Pattern of Arbors and Diversity of Herbaceous Species in the Usytu Nature Reserve

WANG Yong-sheng，LI Gang-tie，YUE Yong-jie，LI Qing-xue，ZOU Shou-yi   

  1. Inner Mongolia Agricultural University, Hohhot 010019, China
  • Received:2010-11-25 Revised:2011-04-19 Online:2012-01-15 Published:2012-02-27

PDF (PC)

978

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被引次数

6

摘要： 运用点格局分析方法，对乌斯吐自然保护区5块样地内乔木空间格局进行分析，结果表明：集群分布为该地乔木主要的空间格局，样地a、样地e在所有空间尺度下均呈现显著的集群分布格局，样地b、样地d在较小的空间尺度下（r＜8 m）呈现随机分布；而在较大的空间尺度下仍然呈现集群分布，只有样地c在所有尺度下都呈现随机分布。采用6个不同的多样性指数对林下草本多样性进行分析，结果表明：该地草本物种多样性表现出与乔木空间格局具有显著的关联性，即乔木呈现集群分布的样地内，草本多样性较高。

关键词: 乔木, 空间格局, 集群分布, 草本, 多样性指数, 乌斯吐自然保护区, 内蒙古

Abstract: In this paper, the spatial distribution pattern of arbors in 5 plots in the Usytu Nature Reserve was studied using the method of point pattern analysis. The results showed that the contagious distribution was the main spatial distribution pattern in the study area. A significant cluster distribution occurred in plot a and e under all the spatial scales; a random distribution occurred in plot b and d under small scale （r<8 m), but a cluster distribution occurred under large scale; a random distribution occurred in plot c under all scales. Diversity of herbaceous species under forest was analyzed using six different diversity indexes, the results revealed that there was a significant correlation between the diversity of herbaceous species and the spatial distribution pattern of arbors, that is the diversity of herbaceous species in the plots where a cluster distribution of arbors occurred was higher than that in the plots where a random distribution of arbors occurred.

Key words: arbor, spatial distribution pattern, cluster distribution, herbaceous species, diversity index, Usytu Nature Reserve, Inner Mongolia