Effects of Qingtu Lake Water Area Formation on Diversity of Plants in Desert Region

LIU Shujuan; MA Jianping; LIU Shizeng; YUAN Hongbo; WANG Qi

doi:10.13961/j.cnki.stbctb.2016.01.006

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Effects of Qingtu Lake Water Area Formation on Diversity of Plants in Desert Region

- Effects of Qingtu Lake Water Area Formation on Diversity of Plants in Desert Region
- Bulletin of Soiland Water Conservation Vol. 36, Issue 1, Pages: 27-32(2016)
- 作者机构：
  
  甘肃省治沙研究所甘肃省荒漠化与风沙灾害防治重点实验室省部共建国家重点实验室培育基地,甘肃,兰州,730070
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.01.006
  CLC：
- Published：2016
- 稿件说明：
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LIU Shujuan, MA Jianping, LIU Shizeng, et al. Effects of Qingtu Lake Water Area Formation on Diversity of Plants in Desert Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 27-32.
DOI：

LIU Shujuan, MA Jianping, LIU Shizeng, et al. Effects of Qingtu Lake Water Area Formation on Diversity of Plants in Desert Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 27-32. DOI： 10.13961/j.cnki.stbctb.2016.01.006.

摘要

[目的] 分析青土湖输水过程对荒漠植物种多样性影响

为青土湖输水后的生态功能分析提供参考. [方法] 通过4 a的定位观测数据计算

分析青土湖岸植物种的多样性以及植物种的时间与空间变化及其与地下水位关系. [结果] 距水面200 m范围的植物种数量减少

其中距水面0 m的植物种减少最多

100 m处物种变化最少.Shannon-Weiner

Pielou指数和Simpson指数变化趋势相似

丰富度和多样性减小

均匀度和优势度增大;其中植物种优势度变化相对较大

且空间变化速率大于时间变化率

但Cody指数的时间变化率大于空间变化速率. [结论] 青土湖输水促使植物种及其多样性以水源为中心呈带状变化

形成特征植物圈

且随地下水位上升变化程度增大.

Abstract

[Objective] The objective of this study is to investigate the influence of water delivery process on diversity of the plants in Qingtu Lake in order to provide basis for functional analysis in this region. [Methods] After a four year locating observation

biodiversity index was applied to analyze plant diversity in Qingtu Lake shores. The relationships between plant diversity variation and underground water level were also investigated. [Results] The number of plant species reduced within 200 m range from the water surface

and the maximum reduction occurred at the surface of water while the minimum reduction occurred at 100 m. Shannon-Weiner

Pielou index and Simpson index showed a similar trend

richness and Shannon-Weiner decreased

while Pielou index and Simpson index increased. Simpson index changed greatly

and the spatial variation was greater than the temporal variation. In contrast

the temporal variation of the Cody index was greater than the spatial variation. [Conclusion] Importing water to Qingtu Lake had prompted the spatial distribution of plant species. The water source is centre for the belt distribution of the plant species

and the change increase with the rise of the underground water level.

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