| 松嫩平原草原植被分类系统的探讨 |
| |
| 引用本文： | 郑慧莹,李建东.松嫩平原草原植被分类系统的探讨[J].植物生态学报,1990,14(4):297-304. |
| |
| 作者姓名： | 郑慧莹 李建东 |
| |
| 作者单位： | 中国科学院植物研究所，东北师大草地研究所 北京 100044，长春 130024 |
| |
| 基金项目： | 国家自然科学基金“松嫩平原植被分类与立地类型研究” |
| |
| 摘 要： | 本文在对松嫩平原的草原植被作了全面调查，记录了760多个样方以及对生境，特别是土壤的一些主要因子做了分析的基础上，采用植物与生境和定性与定量相结合的方法；确定以植物种类组成(特别是生态种组)、群落相似性的数量指标和动态特征为依据的分类原则。划分了4个群目、12个群属和40个群丛，建立了三级的分类系统，并阐明各等级分类单位的特征，揭示了松嫩平原草原植物的组合规律及其与环境的关系。不同等级分类单位的相似和差异，体现了分类系统是一个有机的整体和调查区植被的连续性和间断性．此外，分类系统的高级分类单位与立地类型的对应关系，为草原的经营管理提供了依据。
|
| 关 键 词： | 松嫩平原 草原植被 分类系统 |
A STUDY OF HIERARCHICAL CLASSIFICATION FOR THE STEPPE VEGETATION ON THE SONG-NEN PLAIN |
| |
| Zheng Hui-ying.A STUDY OF HIERARCHICAL CLASSIFICATION FOR THE STEPPE VEGETATION ON THE SONG-NEN PLAIN[J].Acta Phytoecologica Sinica,1990,14(4):297-304. |
| |
| Authors: | Zheng Hui-ying |
| |
| Abstract: | The Song-Nen Plain is located in the northeast of China. The plain has a temperate semihumid continental climate. The summer is hot and rainy, but the winter is very cold and dry with little snow. The meadow steppe is developed as a result and has become a zonal vegetation type of the region. The combination of plants and distribution of plant communities appear to be controlled mainly by the edaphic condition.From a combination of component species and biotope, using qualitative and quantitative analysis, namely, a polythetic hierarchical agglomerative classification(MULVA-4 PROGRAM),the steppe vegetation on the Song-Nen Plain can be divided into different units. These units are classified as 4 orders, 12 alliances and 40 associations, depending on species composition, especially ecological groups of species, similarity coefficient and dynamic feature of communities, so that a hierarchical system for the steppe vegetation of the Song-Nen Plain is tentatively established. The system reveals the relationship between combination of plant and biotope. The similarity and difference in component species of various units demonstrate not only the whole property but also the continuity and discontinuity of the steppe vegetation.It has been found that there is correspondence between high syntaxa and site type. Based on this correlation the classification of vegetation leads to practical considerations for the management of the steppe in Song-Nen Plain. |
| |
| Keywords: | Song-Nen Plain Hierarchical system Steppe vegetation |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《植物生态学报》浏览原始摘要信息 |
|
点击此处可从《植物生态学报》下载免费的PDF全文 |
