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Classification of the eastern alpine vegetation of Lesotho

 

作者: C.D. Morris,   N.M. Taintoi,   S. Boleme,  

 

期刊: African Journal of Range & Forage Science  (Taylor Available online 1993)
卷期: Volume 10, issue 1  

页码: 47-53

 

ISSN:1022-0119

 

年代: 1993

 

DOI:10.1080/10220119.1993.9638321

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Five vegetation communities in the alpine catchments of Lesotho were identified by hierarchical classification of the botanical composition data. Discriminant analysis indicated that these communities occupy particular topographic positions. The community‐environment relationships identified in this study were similar to those reported from other alpine areas of Lesotho. Grasslands at high altitudes are temperate in nature, with a high proportion of C3grass species. Below 2 950 m on the warmer aspects and below 2 750 m on south‐facing slopes, subtropical grass species (C4) dominate the sward. Within the temperate and subtropical vegetation belts, slope orientation dictates the proportion of C3species present in the sward. It is proposed that topography acts to modify the factors that directly influence plant growth by modifying solar radiation patterns.

 

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