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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