FUZZY SET ORDINATION AND CLASSIFICATION OF SERENGETI SHORT GRASSLANDS, TANZANIA

被引：12

作者：

BANYIKWA, FF

FEOLI, E

ZUCCARELLO, V

机构：

[1] Dipartimento di Biologia, Università degli Studi di Trieste, Trieste

来源：

JOURNAL OF VEGETATION SCIENCE | 1990年 / 1卷 / 01期

关键词：

Disturbance; Grassland community; Grazing; Topographic gradient;

D O I：

10.2307/3236059

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Abstract. Species abundance data from 32 representative stands are used to evaluate the vegetation in the heavily grazed Serengeti short grasslands. The abundant species are: Kyllinga nervosa, Sporobolus ioclados, S. kentro‐phyllus and Eustachys paspaloides, all occurring in elevated areas, and Hypoestes forskalei, which is found in the drainage areas. Numerical classification and fuzzy set ordination revealed four main grassland communities associated with a topographic gradient. The communities are considered distinct since their niches, as computed in the community and environmental fuzzy system space are not overlapping. Leaching, erosion and animal disturbance effects correlated with the topographic gradient are found to determine species composition and overall community structure in the grasslands. 1990 IAVS ‐ the International Association of Vegetation Science

引用

页码：97 / 104

页数：8

共 44 条

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