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Original Articles

Implikasies van subhabitat‐diversiteit en die rol van bestuur op die voorkoms van ‘n aantal grasspesies van die suuragtige‐gemengde bosveldFootnote1

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Pages 44-50 | Accepted 11 Nov 1988, Published online: 29 Oct 2010
 

Uittreksel

Die subhabitatvoorkeure van sewe grasspesies en die nie‐grasagtige kruide, tipies van die Suuragtige‐Gemengde Bosveld, is in agt kampe, wat verskillende langtermyn‐beweidingsbehandelings ontvang het, ondersoek. Twee subhabitatte is geidenti‐fiseer, nl. onder borne en tussen bome. Verskille in die subhabitatvoorkeure van die verskillende spesies is gevind en beskryf.

Die invloed wat die verskillende langtermyn beweidingsbehandelings op die teenwoordigheid en subhabitatvoorkeure van die betrokke grasspesies en nie‐grasagtige kruide gehad het, is geidentifiseer en bespreek. Dit blyk dat Panicum maximum die belangrikste grasspesie is waaraan meer aandag gegee sal moet word vanwee die gras se voorkeur aan die bedekte subhabitat, hoe produksiepotensiaal en gevoeligheid vir weidingsbestuur. Op grond van hierdie bevindings word die toepassing van bos‐beheer, sonder die nodige inligting vir hierdie spesifieke veldtipe, bevraagteken.

Abstract

The subhabitat preferences of seven grass species and forbs, typical of the Sourish Mixed Bushveld, were investigated in eight camps which had received different long‐term grazing treatments. Two subhabitats were identified, viz. under trees and between trees. Differences in the subhabitate preferences were found and described.

The influence of the long‐term grazing treatments on the occurrence and subhabitat preferences of the grass species and forbs concerned, were identified and discussed. Panicum maximum proved to be the most important grass species which should receive more attention due to its preference for the canopied subhabitat, its high production potential and its sensitiveness to grazing management. The application of bush control without the necessary information for the specific veld type is questioned on the basis of these findings.

Notes

Gebaseer op deel van MSc Agric. verhandeling aan die Universiteit van Pretoria.

Huidige adres: Departement van Landbou en Watervoorsie‐ning (Transvaalstreek), Privaatsak X1615, Warmbad, 0480.

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