[1]李璠,周国英,杨路存,等.围栏封育对青海湖流域主要植物群落多样性与稳定性的影响[J].水土保持研究,2013,20(04):135-140.
　LI Fan,ZHOU Guo-ying,YANG Lu-cun,et al.Effect of Fence on Biodiversity and Stability of the Main Plant Communities in the Qinghai Lake Area[J].Research of Soil and Water Conservation,2013,20(04):135-140.
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围栏封育对青海湖流域主要植物群落多样性与稳定性的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年04期 页码: 135-140 栏目: 出版日期: 2013-08-28
Title:
Effect of Fence on Biodiversity and Stability of the Main Plant Communities in the Qinghai Lake Area
作者:
李璠1,2, 周国英1, 杨路存1, 徐文华1, 钟泽兵1,2, 宋文珠1
1. 中国科学院 西北高原生物研究所, 西宁 810001;
2. 中国科学院大学, 北京 100049
Author(s):
LI Fan1,2, ZHOU Guo-ying1, YANG Lu-cun1, XU Wen-hua1, ZHONG Ze-bing1,2, SONG Wen-zhu1
1. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xi’ning 810001, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
青海湖流域; 物种多样性; 群落稳定性; 改进M-Godron法; 相关性
Keywords:
Qinghai lake area; species diversity; community stability; improved M-Godron method; correlation
分类号:
Q948.15
摘要:
植物群落多样性与稳定性是群落生态学的核心内容，是现代生态学的热点问题，也是草地资源评价与管理的重要指标。青海湖流域是我国主要牧场之一，研究该地区草地利用现状和封育影响评价对草地可持续利用具有重要意义。本文利用Simpson，Shannon-wiener和Pielou物种多样性指数及改进后的Godron稳定性测定方法，分析了青海湖流域高寒草甸、高寒草原和温性草原三种草地群落的多样性、稳定性及二者之间的关系，比较了相同草地类型围栏内外的植物群落多样性和稳定性，及三种草地类型在围栏内外的情况。结果表明：（1）高寒草甸，多样性：围栏内 > 围栏外，稳定性：围栏外 > 围栏内；高寒草原，多样性：围栏外 > 围栏内，稳定性：围栏内 > 围栏外；温性草原，多样性：围栏外 > 围栏内，稳定性：围栏内 > 围栏外。（2）围栏外不同草地类型多样性大小：高寒草甸 > 高寒草原 > 温性草原，稳定性大小：高寒草原 > 温性草原 > 高寒草甸。（3）围栏内不同草地类型多样性大小：高寒草甸 > 高寒草原 > 温性草原，稳定性大小：温性草原 > 高寒草原 > 高寒草甸。在高寒草甸、高寒草原和温性草原中多样性与稳定性表现为负相关关系。
Abstract:
To analyze community diversity, stability and the their correlation, community diversity and stability within and out of fence in the same community and the three community diversity and stability within and out of fence in QingHai lake area were measured and compared according to three diversity indexes: the Simpson index, the Shannon-Wiener index, and the Pielou index as well as a community stability index: the improved M-Godron method. The result shows that: (1) the diversity of fence alpine meadow is greater than enclosure, the stability is on the contrary; the diversity of enclosure steppe is greater than fence, the stability is on the contrary; the diversity of enclosure temperate steppe is greater than fence, the stability is on the contrary; (2) by comparing the diversity out of fence, the rank of diversities is the alpine meadow > steppe > temperate, by comparing the stability out of fence, the level of stability is in the order of the steppe > temperate > alpine meadow; (3) by comparing the diversity within fence, the rank of the diversities is the alpine meadow > steppe > temperate, by comparing the stability within fence, the level of stability is in the order of the temperate steppe > steppe > alpine meadow. There is an obvious negative correlation between diversity and stability in alpine meadow, alpine steppe and temperate steppe.

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备注/Memo

收稿日期:2012-12-16;改回日期:2013-01-06。
基金项目:国家科技支撑项目（2007BAC30B04）；青海省科技攻关项目（2006-N-151）
作者简介:李璠(1987-),女,甘肃陇南人,在读硕士,主要研究方向:草地生态学。E-mail:fanwacai@163.com
通讯作者:周国英(1974-),男,青海乐都人,研究员,主要研究方向:生态学。E-mail:zhougy@nwipb.cas.cn

更新日期/Last Update: 1900-01-01