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Original Articles

Assessment of veld condition and trend

Pages 137-139 | Published online: 08 Nov 2010
 

Abstract

Advice on veld management generally assumes that the productivity of veld can be improved by management. There is thus a need in agricultural extension work, where botanical surveys are impractical, for a basis on which changes in veld condition can be judged and recorded. It is suggested that a score sheet for the assessment of condition be based on five criteria, namely, cover density, botanical composition, vigour, soil surface condition and insect damage. Using score sheets and photographs, trend in veld condition may be established by comparing successive condition assessments recorded at representative sites at similar growth stages or seasons. Knowledge of potential climax condition is presupposed in the use of "present‐condition” score sheets.

UITTREKSEL

Advies oor veldbestuur is normaalweg gebaseer op die aanname dat veldproduktiwiteit verhoog kan word deur voortreflike bestuur. Daar is dus ‘n behoefte in landbou‐voorligting, waar botaniese opnames onprakties is, vir ‘n basis waarop veranderinge in veld beoordeel en aangeteken kan word. Daar word voor‐gestel dat veldtoestand beoordeel word op grond van vyf eienskappe, naamlik digtheid van bedekking, botaniese samestelling, groeikrag, grondoppervlakte‐toestand en beskadiging deur insekte. Met behulp van punt‐toekenningskaarte en fotos kan veldtoestandneiging vasgestel word deur opeenvolgende bepalings te vergelyk by verteenwoordigende plekke op dieselfde. groeistadium of gedurende dieselfde seisoen. Kennis van die potensiële klimakstoestand is ‘n voorvereiste by die doeltreffende gebruik van veldtoestandbeoorde‐ling van die. huidige stelsel.

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