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The influence of different land‐use practices on soil erosion, herbage production and on grass species richness and diversity
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J. Venter --- Natal Parks Board, Republic of South Africa B. Liggitt --- Institute of Natural Resources, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa G.P.Y. Clarke --- Department of Statistics, Republic of South AfricaA fence‐line contrast study compared erosion levels, herbage production and grass species diversity in Umfolozi Game Reserve (UGR) and adjacent KwaZulu (KWZ). There was no significant difference in soil loss or A‐horizon depths measured in KWZ and UGR, but there... -
Grass composition and rangeland condition of the major grazing areas in the mid Rift Valley, Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Amsalu Sisay R M T BaarsA range inventory and condition study was conducted in three altitude zones: lowland (1500-1700m), medium altitude (1700-2000m), and highland (2000-2500m). Each altitude zone was stratified into four or five important grazing areas. One area represented lightly grazed government ranches or... -
Vegetation patterns and nutrients in relation to grazing pressure and soils in the sandveld and hardveld communal grazing areas of Botswana
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Nsinamwa NM Moleele RJ SebegoA major challenge confronting managers of extensive grazing systems is uneven use of herbaceous forage plants by livestock. The concentration of grazing in preferred areas or around foci points (e.g. water points) eventually results in adverse impacts in soil nutrients,... -
Perspective: Improvement in rangeland condition of the Flooding Pampa of Argentina through controlled grazing
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: V.A. Deregibus --- Faculty of Agronomy, Argentina E. Jacobo --- Faculty of Agronomy, Argentina A. Rodriguez --- Faculty of Agronomy, ArgentinaThe Flooding Pampa grasslands situated in temperate Argentina were ungrazed historically, but now support primarily breeding herds of cattle. These extensive, flat, infertile grasslands experience seasonal floods. Although summer droughts are usual, grasses maintain productivity during the entire year and... -
Review article: Vegetative growth, reproduction, browse production and response to tree clearing of woody plants in African savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G.N. Smit --- Department of Grassland Science, Republic of South Africa N.F.G. Rethman --- Department of Plant Production and Soil Science, Republic of South Africa A. Moore --- Department of Agriculture, Republic of South AfricaThis review deals with issues including the determinants of vegetative growth of woody plants (soil water availability, water stress, soil nutrient availability, carbohydrate reserves, plant hormones, atmospheric CO2 concentration, tree age, competition, defoliation and shoot pruning, fire, pathogens, soil and... -
Community dynamics and phytomass of herbaceous species in the Sudaniansavanna-woodlands of Burkina Faso: short-term impact of burning season
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: SD Dayamba --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden P Savadogo --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden L Sawadogo --- Département Productions Forestières, Burkina Faso D Tiveau --- , République Démocratique du Congo D Zida --- Département Productions Forestières, Burkina Faso M Tigabu --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden PC Oden --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, SwedenFire is important for the maintenance and conservation of African savanna ecosystems, and prescribed fire is used in the Sudanian savanna-woodlands of West Africa as a forest management tool. Yet, the effects of fire on savanna ecosystems and especially on... -
Botanical composition, yield and nutritional quality of grassland in relation to stages of harvesting and fertiliser application in the highlands of Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Z Tessema --- Department of Animal Sciences, Ethiopia A Ashagre --- , Ethiopia M Solomon --- Debre Zeit Agricultural Research Centre, EthiopiaLivestock production contributes to the livelihoods of the Ethiopian people; however, the productivity of the livestock subsector in the highlands is low due to malnutrition. Therefore, this study assessed the botanical composition, dry matter (DM) yield, chemical composition and in... -
Herbaceous biomass–species diversity relationships in nutrient hotspots of a semi-arid African riparian ecosystem
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Helga van Coller --- Unit of Environmental Sciences and Management, South Africa Frances Siebert --- Unit of Environmental Sciences and Management, South AfricaThe hump-back relationship between species diversity and productivity predicts highest species richness at intermediate levels of biomass, and low species numbers in least and most productive habitats. Sodic patches of semi-arid savannas are considered ‘nutrient hotspots’ by producing high-quality forage... -
Long-term landscape changes in vegetation structure: fire management in the wetlands of KwaMbonambi, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LB Luvuno --- School of Life Sciences, South Africa DC Kotze --- Centre for Water Resources Research, School of Agricultural, Earth and Environmental Sciences, South Africa KP Kirkman --- School of Life Sciences, South AfricaIn wetlands the effects of fire on vegetation dynamics are somewhat uncertain. A change detection analysis in the herbaceous wetlands of KwaMbonambi, South Africa, which were subject to frequent fires, revealed that in 1937 the study area comprised grassland (69%),... -
Changes in vegetation structure, aboveground biomass and soil quality in response to traditional grazing land management practices in the central highlands of Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Teklu Wegi --- , Ethiopia Abubeker Hassen --- , South Africa Melkamu Bezabih --- , Ethiopia Adugna Tolera --- , EthiopiaDespite shrinking pastureland in the central highlands of Ethiopia, as a result of cropping, there has been little detailed work to evaluate effects of traditional grazing land management practices on vegetation and soil attributes. This study aimed to quantify vegetation...