民勤绿洲霸王群落的植物多样性

张佳宁; 胡小柯; 朱国庆; 李亚

民勤绿洲霸王群落的植物多样性

1.
甘肃省科学技术情报研究所,甘肃兰州730000
2.
甘肃省荒漠化防治重点实验室,甘肃省治沙研究所,甘肃兰州 733000

基金项目:

国家自然科学基金(41061046)

摘要: 研究了民勤绿洲地区霸王(Zygophyllum xanthoxylum)群落的物种组成、群落结构及物种多样性,结果表明,该地区霸王群落的植物组成简单,共40种,分属16科26属,其群落垂直结构表现为灌木层以蒺藜科和藜科为主,草本层以菊科为主;植物多样性在不同生境间差异较大,Simpson多样性指数0.181 7～0.778 5,Shannon-Weiner 多样性指数0.365 2～1.426 8,Pielou均匀度指数0.234 9～0.666 6,生态优势度0.221 5～0.806 7,表明霸王群落内不同植物种群的作用随着生境变化而发生明显变化。

关键词:

English

Species diversity of Zygophyllum xanthoxylum community in Minqin Oasis

1.
Institute of Sciences and Technology Information of Gansu, Lanzhou 730000, China
2.
Gansu Key Laboratory of Desertification Combating, Gansu Desert Control Research Institute, Lanzhou 733000, China

Received Date: 2013-07-10
Publish Date: 2013-11-14

Abstract: Species composition, community construction and species diversity of Zygophyllum xanthoxylum community in Minqin Oasis were studied. The results showed that plant composition in this area is single. There are 42 plant species, which belong to 26 genera of 16 families. The vegetation vertical structure in this area is that, shrub layer is mainly composed of Zygophyllaceae and Chenopodiaceae plants, and herb layer is mainly composed of Compositae plants. Species diversities are varied in different habitats. The Simpson index is 0.181 7～0.778 5, the Shannon-Weiner index is 0.362 5～0.426 8, the Pielou index is 0.234 9～0.666 6, and the ecological dominance index is 0.221 5～0.806 7. All these results showed that, with the changing of habitats, functions of different populations in Z.xanthoxylum community are also markedly changed.

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参考文献(1)

[1]

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民勤绿洲霸王群落的植物多样性

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Species diversity of Zygophyllum xanthoxylum community in Minqin Oasis

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