| 松嫩平原针茅草原的特征及其生态地理规律的探讨 |
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| 引用本文： | 李建东,郑慧莹.松嫩平原针茅草原的特征及其生态地理规律的探讨[J].植物生态学报,1987,11(3):183-192. |
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| 作者姓名： | 李建东 郑慧莹 |
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| 作者单位： | 东北师范大学生物系，中国科学院植物研究所 |
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| 摘 要： | 经考察，松嫩平原的针茅草原主要有4个群落类型：贝加尔针茅(Stipa baicalensis)群落、贝加尔针茅+线叶菊(Filifolium sibiricum)群落、大针茅(S．grandis)+贝加尔针茅群落和大针茅群落。通过对针茅草原各类型基本结构特征和生态地理分布规律的分析，并根据它们所反映的水土条件的差异，认为贝加尔针茅群落为该地区的地带性植被。在中国温带草原区划中的位置属于草甸草原，应与内蒙古高原典型草原分开，成为一个独立的分区
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| 关 键 词： | 松嫩平原 针茅草原 |
A STUDY OF THE CHARACTERISTICS AND THE ECOGEOGRAPHICAL LAW OF STIP A STEPPE ON THE SONG-NEN PLAIN |
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| Li Jian-dong.A STUDY OF THE CHARACTERISTICS AND THE ECOGEOGRAPHICAL LAW OF STIP A STEPPE ON THE SONG-NEN PLAIN[J].Acta Phytoecologica Sinica,1987,11(3):183-192. |
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| Authors: | Li Jian-dong |
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| Abstract: | The investigation shows that the Stipa genus in its narrow sense has only two species,Stipa baicalensis and S.grandis,on the Song- Nen Plain.The Stipa Steppe constituted by them mainly has four community types:(1) Stipa baicalensis community;(2)Stipa baicalensis and FiIifolium sibiricum community;(3)Stipa grandis and Stipa baicalensis community and (4)Stipa grandis community.Through the analysis of the geographic distribution and the ecological environment of the two species of Stipa,the flora composition,the species composition of the communities,the characteristic of community structure,the eco-geogra- phical distribution pattern of varies types of Stipa Steppe,and the differences of the water and soil conditions which they reflected,it can be confirmed that the Stipa baicalensis community is the representative zonal vegetation of this region and it should be put under the meadow- steppe in the regionalisation of Chinese temperate grassland,be separated from the steppe which distributes in the Inner Mongolia Plateau,and be considered as an independent natural region. |
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| Keywords: | The Song-Nen Stipa steppe |
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