Articles by Keyword: Sand

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  1. The effect of particle-size distribution on the suitability of sandy soils for sports fields

    The effect of particle-size distribution on the suitability of sandy soils for sports fields

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The compaction of the topsoil layer of sports fields can modify soil properties such as permeability, resistance to root penetration, aeration and water-holding capacity. The feasibility of predicting these properties from particle size distribution parameters of sandy soils was investigated...
  2. Die oplosbaarheid en mobiliteit van kalk in sand

    Die oplosbaarheid en mobiliteit van kalk in sand

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die oplosbaarheid, diffusie en loging van twee kalktipes is in 'n suiwer sandmedium bestudeer. Deur van sand gebruik te maak is die kompliserende effek van die uitruilfase van grond geëlimineer. Die uitwerking van byvoegings van KCl, NH4Cl, Na2EDTA, organiese materiaal...
  3. Die invloed van golwende onderliggende paleosols op seisoenale fluktuasies van vrywatervlakke in eoliese sand van die noordwestelike Oranje-Vrystaat

    Die invloed van golwende onderliggende paleosols op seisoenale fluktuasies van vrywatervlakke in eoliese sand van die noordwestelike Oranje-Vrystaat

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die resultate verkry gedurende hierdie ondersoek dui op akkumulasie van water in holtes van 'n golwende kleierige ondergrond onder oorliggende sand van eoliese oorsprong. Seisoenale veranderings in die diepte van watervlakke is die gevolg van seisoenale verspreidingspatrone van reënval. Die...
  4. SOME OBSERVATIONS ON THE FISH LIFE IN A SEASONAL SAND RIVER

    SOME OBSERVATIONS ON THE FISH LIFE IN A SEASONAL SAND RIVER

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    Five fish species were collected in a seasonal sand river that had migrated upstream more than 150 km from the permanent Limpopo River. The population structure indicated that mainly juveniles had taken part in this colonisation. No fish were collected...
  5. Developing a protocol for managing the biophysical condition of a water management area: the Sabie catchment case study

    Developing a protocol for managing the biophysical condition of a water management area: the Sabie catchment case study

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Recent modification of the South African Water Law spells out fundamental changes for the way the country's water resources will be managed in the future. One of the most significant mandates is the establishment of Catchment Management Agencies (CMAs) and...
  6. The diet of the ragged-tooth shark <em>Carcharias taurus</em> Rafinesque 1810 in the Eastern Cape, South Africa

    The diet of the ragged-tooth shark <em>Carcharias taurus</em> Rafinesque 1810 in the Eastern Cape, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    The ragged-tooth shark Carcharias taurus is a large predator of inshore coastal waters in the Eastern Cape, South Africa. Born at about 1m long and attaining approximately 3m, stomach content analyses have shown that it feeds largely on teleosts and...
  7. Spatial changes in forest cover on the KwaNibela Peninsula, St Lucia, South Africa, during the period 1937 to 2008

    Spatial changes in forest cover on the KwaNibela Peninsula, St Lucia, South Africa, during the period 1937 to 2008

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    The KwaNibela Peninsula is situated in the northernmost region of Lake St Lucia in KwaZulu-Natal. It is covered by forest patches of either Sand Forest or Coastal Forest within the Maputaland Coastal Vegetation. The area and the forests are heavily...
  8. Dry season fish survival in isolated pools and within sand-beds in the Mzingwane River, Zimbabwe

    Dry season fish survival in isolated pools and within sand-beds in the Mzingwane River, Zimbabwe

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Four isolated pools in the otherwise dry Mzingwane River, Zimbabwe, were sampled in December 1985 and a total of 4 547 specimens of 23 species were collected. The dominant species, by number, were Chiloglanis paratus, followed by Barbus toppini, Mesobola...
  9. <em>Pinus patula</em> and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by <em>Fusarium circinatum</em>

    <em>Pinus patula</em> and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by <em>Fusarium circinatum</em>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    In response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum-tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of...
  10. Unconsolidated sediment distribution patterns in the KwaZulu-Natal Bight, South Africa: the role of wave ravinement in separating relict versus active sediment populations

    Unconsolidated sediment distribution patterns in the KwaZulu-Natal Bight, South Africa: the role of wave ravinement in separating relict versus active sediment populations

    Item type: Journal Article • Journal: African Journal of Marine Science
    This paper examines the distribution of unconsolidated sediment in the KwaZulu-Natal Bight located along the east coast of South Africa. Results show that there is a general shelf-wide sediment distribution of coarser grain sizes between depths of 60 and 100 m,...