| 黄河源区玛曲县草原退化研究初报 |
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| 引用本文： | 王向宏,戚登臣.黄河源区玛曲县草原退化研究初报[J].甘肃林业科技,2008,33(3):9-11. |
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| 作者姓名： | 王向宏 戚登臣 |
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| 作者单位： | 1. 西北农林科技大学,陕西,杨凌,712100;嘉峪关宏丰实业有限责任公司,甘肃,嘉峪关,735100
2. 甘肃省林业科学研究院,甘肃,兰州,730020 |
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| 摘 要： | 以高寒草甸生态系统植物群落样地调查资料为基础，对不同退化程度植物群落结构及物种多样性特征进行研究分析。结果表明：随着草地退化程度的加剧，草地植物群落结构、物种组成及覆盖度均发生了很大变化，主要表现在物种数急剧减少、植被覆盖度下降、优良牧草比例大幅度减少，物种多样性明显低于自然生态系统。
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| 关 键 词： | 草地退化 玛曲 植物群落多样性 草地群落 |
Preliminary Report on the Study of Grassland Degradation of Maqu Country in Source Region of Yellow River |
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| WANG Xiang-hong,QI Deng-chen.Preliminary Report on the Study of Grassland Degradation of Maqu Country in Source Region of Yellow River[J].Journal of Gansu Forestry Science and Technology,2008,33(3):9-11. |
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| Authors: | WANG Xiang-hong QI Deng-chen |
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| Institution: | WANG Xiang-hong,QI Deng-chen (1.Northwest Sci-Tech University of Agriculture and Forestry, Yangling Shanxi 712100,China; 2.Hongfeng Industrial Corporation limited, Jiayuguan Gansu 735100, China; 3.Gansu forestry Science and Technology Research Academy, Lanzhou 730020, China) |
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| Abstract: | In this paper,the plant community structure in different degenerated grassland and the species di-versity characteristics were studied and analyzed based on the investigation data of plant community sample plots of alpine meadow ecosystem.The result indicated: Along with the degree of grassland degeneration aggravating,the plant community structure of grassland,the species composition and the degree of coverage has had tremendous changes,mainly presented as the rapid reduction of species number,reduction of vegetation coverage,high quality forage had decreased greatly and the species diversity is lower than the natural ecosystem obviously. |
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| Keywords: | degenerated grassland Maqu plant community diversity grassland community |
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