Articles by Author: Hd Vetter

Search results for Hd Vetter

We found 7 results for you
  1. Effects of land tenure, geology and topography on vegetation and soils of two grassland types in South Africa

    Effects of land tenure, geology and topography on vegetation and soils of two grassland types in South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A national degradation audit conducted in South Africa in the late 1990s found communal land tenure to be the strongest predictor of vegetation and soil degradation, while abiotic factors such as geology, slope and aspect were also correlated with degradation...
  2. Development and sustainable management of rangeland commons – aligning policy with the realities of South Africa's rural landscape

    Development and sustainable management of rangeland commons – aligning policy with the realities of South Africa's rural landscape

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Policy affecting the rangeland commons in South Africa has been based largely on management models developed for large-scale commercial farming. This paper examines the current policy situation and discusses some of the most pervasive ecological and economic assumptions that have...
  3. Soil erosion in the Herschel district of South Africa: changes over time, physical correlates and land users' perceptions

    Soil erosion in the Herschel district of South Africa: changes over time, physical correlates and land users' perceptions

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Soil erosion in rangelands is widely believed to be caused primarily by overgrazing. The aims of this study, conducted in a severely eroded district under communal tenure, were to establish (1) how the extent and severity of soil erosion have...
  4. Examining the evidence for ecologically sustainable ostrich breeding practices on natural veld in the Little Karoo, South Africa

    Examining the evidence for ecologically sustainable ostrich breeding practices on natural veld in the Little Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Land degradation in the Little Karoo is extensive. Overstocking of breeding ostriches on natural veld has been among the main causes of this. The National Department of Agriculture has set a general stocking rate of 60 ha LSU−1 as a...
  5. Aboveground biomass production of a semi-arid southern African savanna: towards a new model

    Aboveground biomass production of a semi-arid southern African savanna: towards a new model

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Following a field campaign to determine the species composition, canopy cover, aboveground annual production and leaf area index (LAI) of the semi-arid savanna of north-western Namibia, we present a production model that can be used by graziers to determine the...
  6. Boulder shores in South Africa – a distinct but poorly documented coastal habitat type

    Boulder shores in South Africa – a distinct but poorly documented coastal habitat type

    Item type: Journal Article • Journal: African Journal of Marine Science
    This study compares the composition, species richness and biomass of macrofaunal and algal assemblages on intertidal boulder shores as compared with those on adjacent rock-platforms, at six sites along the southwest coast of South Africa. Of 214 species identified, 175...