Articles by Author: Alexander Groengroeft

Search results for Alexander Groengroeft

We found 50 results for you
  1. The effect of fire history on soil nutrients and soil organic carbon in a semi-arid savanna woodland, central Namibia

    The effect of fire history on soil nutrients and soil organic carbon in a semi-arid savanna woodland, central Namibia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Fire is an integral part of savanna ecosystems that has shaped these systems since the Miocene. Substantial uncertainty about fire effects in semi-arid ecosystems exists. Fire may affect ecosystem productivity directly through nutrient volatilisation, increased mineralisation and altering organic matter...
  2. THE USE OF MICROCOMPUTERS IN WATER RESOURCE MODELLING

    THE USE OF MICROCOMPUTERS IN WATER RESOURCE MODELLING

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Microcomputers are the ideal tool for water resource modelling. Not only are they fast and computationally efficient, but they can also provide the user with dynamic graphical displays which greatly assist in the interpretation of the results of the analyses...
  3. Time in Ntuli's short stories with specific reference to <em>Uthingo Lwenkosazana</em>

    Time in Ntuli's short stories with specific reference to <em>Uthingo Lwenkosazana</em>

    Item type: Journal Article • Journal: South African Journal of African Languages
    In this article time relations in the short story Uthingo lwenkosazana are investigated. The point of departure is narratological and two levels of the narrative text are surveyed. Furthermore an analysis is made of how the order, rhythm and frequency...
  4. Space in D.B.Z. Ntuli's ‘Uthingo Iwenkosazana’

    Space in D.B.Z. Ntuli's ‘Uthingo Iwenkosazana’

    Item type: Journal Article • Journal: South African Journal of African Languages
    Space in the short story ‘Uthingo Iwenkosazana’ is investigated in this article in the story-level as well as the text-level. During the discussion of theoretical issues, reference is also made to other short stories from Ntuli's oeuvre. It is pointed...
  5. SHORT NOTES

    SHORT NOTES

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  6. SHORT NOTES

    SHORT NOTES

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  7. ZOOPLANKTON BIOMASS OF SOME TRANSVAAL IMPOUNDMENTS AND ITS RELATIONSHIP TO TROPHIC STATUS

    ZOOPLANKTON BIOMASS OF SOME TRANSVAAL IMPOUNDMENTS AND ITS RELATIONSHIP TO TROPHIC STATUS

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The zooplankton biomass characteristics of 11 South African impoundments were investigated to assess the value of zooplankton biomass as a trophic status index. Mean annual zooplankton biomasses ranged from 0,38 to 5,32 g m−2, compared with the mean annual chlorophyll...
  8. Community Oriented Intervention to Empower Lay Counsellors

    Community Oriented Intervention to Empower Lay Counsellors

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    A community psychology intervention presents an opportunity to extend, expand and tailor psychological services to the needs of communities. Seven female lay counsellors aged between 40 and 50 years underwent training in basic counselling skills within a community psychology paradigm,...