Articles by Keyword: Species Composition

Search results for Species Composition

We found 410 results for you
  1. The effect of thirty years of burning on the Highland Sourveld of Natal

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A veld condition assessment was used to determine the effect of past burning treatments on the species composition of Highland Sourveld at Cathedral Peak. Veld condition scores in grassland protected from fire were significantly lower than where veld had been...
  2. Towards a method of assessing the veld condition of the valley bushveld in the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Currently, no technique is available for assessing the condition of Valley Bushveld in the Eastern Cape. The objective of this investigation was to develop a method of scoring bushveld according to its productive condition. It was established, through principal component...
  3. Preliminary observations on the ability of goats to control post‐burning regrowth in <em>acacia nigrescens/combretum apiculatum</em> Savanna in Botswana

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A ten hectare block which had been burned with an intense surface head fire was stocked at the rate of one goat per hectare to control the woody regrowth. After one year the block was subdivided and in one half...
  4. Veld condition in the south‐eastern Transvaal and its effect on grazing capacity

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A survey conducted on sites throughout the south‐eastern Transvaal, representing 1,4 million hectares of natural veld has confirmed the parlous state of composition, cover and vigour. The implications which these conditions hold, not only for conservation of soil and water...
  5. Fertilization of southern tall grassveld of natal: Effects on botanical composition and utilization under grazing

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The long‐term effects of nitrogen, phosphate and lime on change in botanical composition and utilization under grazing of Southern Tall Grassveld of Natal are presented. Nitrogen, phosphate, lime and type of nitrogen affected botanical composition significantly. Generally, fertilization had the...
  6. The effect of severe drought and management after drought on the mortality and recovery of semi‐arid grassveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The False Thornveld of the Eastern Cape experienced a particularly intense drought during the 1982/83 growing season. Extensive grass mortality took place during the drought. After the drought, recovery was particularly sensitive to the post‐drought management treatment applied. Veld that...
  7. Korttermyn invloed van strawwe droogte op veldtoestand en waterverbruiksdoeltreffendheid van grasveld in die sentrale Oranje‐Vrystaat

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Short‐term effect of severe drought on veld condition and water use efficiency of grassveld in the central Orange Free State. The impact of an intensive drought (1982/1983 and 1983/84‐growing seasons) on botanical composition, basal cover, mortality of grazing plants and...
  8. Inter‐related floristic changes associated with different long‐term grazing treatments in Sourish Mixed Bushveld<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Eight camps, grazed annually during different seasons by steers, were surveyed. Herbaceous species were grouped into Decreaser and Increaser categories according to their reaction to grazing. The Increaser IIa (light overgrazing) and IIb (moderate overgrazing) herbaceous species were the most...
  9. Veld compositional response to fertilization in the tall grassveld of Natal

    Veld compositional response to fertilization in the tall grassveld of Natal

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The plant species compositional response of veld at Ukulinga to application, over 30 years, of nitrogen, phosphate and lime is reported. Two types of nitrogen fertilizer were applied at four levels with and without phosphate, lime and lime + phosphate...
  10. On the dynamics of demersal fish assemblages off Namibia in the 1990s

    On the dynamics of demersal fish assemblages off Namibia in the 1990s

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Demersal fish surveys carried out off Namibia from 1990 to 2000 were used to study the dynamics of demersal fish assemblages on the shelf and upper slope. The study was performed on each major assemblage, i.e. over the shelf (100–300...