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Showing 1 to 20 of 26 for “"Bush encroachment"”.
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A study of bush encroachment in Hluhluwe National Park, using aerial photographs within a GIS framework
Bush encroachment has been an ongoing process since the proclamation of the Hluhluwe Reserve. In this paper, I assess both the total extent of bush encroachment over the last 40 years for a section of the reserve (9.1 %}, as well as which landscape factors pre-dispose areas to encroachment in that …
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Using an airborne hyperspectral and LiDAR integrated sensor approach to spectrally discriminate and map savanna bush encroaching species in the Greater Kruger National Park region
Bush encroachment is an environmental phenomenon which affects arid and semi-arid savanna rangelands across the world. Bush encroachment has numerous negative and positive impacts on these savanna ecosystems depending on the land use practices and associated rangeland management regimes.
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Woody cover and birds
… land management practices. In recent decades, bush encroachment has increased dramatically throughout the Savanna Biome of South Africa. Bush encroachment is a vegetation dynamic of global interest. It refers to the thickening or increase of woody vegetation (trees and shrubs) at the expense of …
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Assessment of carbon stock and selected soil fertility indicators in a bush encroached savanna at Erichsfelde farm, Namibia
Bush encroachment is a form of land degradation common predominantly in semi-arid areas of the world. The resulting habitat degradation and loss of resource productivity make bush encroachment a serious environmental and economic problem in Namibia. Despite these negative effects, bush encroachment …
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Brush packing as a restoration technology to restore grazing capacity after bush control in the North West Province
… are being altered by a phenomenon known as 'bush encroachment' which causes an imbalance in the tree/grass ratio. Bush encroachment leads to decreased biodiversity and suppressed biomass production, resulting in significant socio-economic implications on both commercial and communal scale. …
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Attributes that make Acacia karroo dominant : stable N and C isotope analysis of nine Acacia species from KwaZulu-Natal (South Africa)
… the dominance of legumes in the process of bush encroachment in Southern Africa. A. karroo has been identified as a particularly invasive species in HUP, and determining what makes this Acacia species and any of the other acacias in HUP invasive formed the foundation of this study.
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How has woody vegetation changed in north-east Namibia in response to land use, climate and fire?
Bush encroachment or the thickening of woody vegetation is a phenomenon occurring throughout savannas, which tends to be more pronounced in small protected areas. The consequences of bush encroachment are often negative for the conservation of biodiversity, for the promotion of tourism and the …
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Reconstruction of late Holocene vegetation and climate of Hluhluwe Mfolozi area using phytoliths
… density index (D/P) does not reflect increased bush encroachment at this site, but appears to show a closed forest at 36cm depth and relatively densely-wooded savannas throughout, while the humidity-aridity index (lph) and water stress index (Fs) suggest a move towards a xerophytic short grass …
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Rivalry for nutrient resources : is there competition below ground between leguminous trees and grasses in a mesic and arid savanna in the Kruger National Park?
… which may help in dealing with the problem of bush encroachment in savannas.
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Living in a changing world: an integrated approach to documenting and understanding medium to long-term vegetation changes in three contrasting land use systems in a mesic savanna, Nothern Zululand, South Africa
… have some impact on the type of and extent of bush encroachment. The study found that although the land users were aware of and concerned about the changes in woody cover in each area, they were not doing much to combat these changes. The perceived importance of the different causes of woody …
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The burning questions about Hluhluwe : causes and consequences of a severe wildfire
… and savannas that have suffered the effects of bush encroachment and/or create open areas allowing grasslands to develop. However, severe fires run the risk of leading to the loss of forests and the biodiversity that they support. This study has identified the conditions likely to promote such …
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Effects of repeated fire on the savanna / forest boundary
… others, determined by fire ecology feedbacks. Bush encroachment has become an ever-increasing trend converting grassland and savanna biomes to forest/thicket. A severe firestorm occurred in the Hluhluwe-Umfolozi Game Reserve in north-eastern South Africa in September 2008. The fire penetrated …
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Understanding changes in plant productivity using EVI satellite data in Tswalu Kalahari Reserve
… providing evidence for possible ongoing bush encroachment in these areas. On the other hand, a negative trend was detected in some locations in the west. The data generated from MODIS EVI and the small integrated value of EVI using TIMESAT produced biologically interpretable results. …
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Micro scale heterogeneity of spiders (Arachnida: Araneae) in the Soutpanberg, South Africa: a comparative survey and iventory in representative habitats
… in spider assemblages, human influence through bush encroachment will result in a change of spider assemblages to that of Short Forest and Mosaic Woodland vegetation types, with implications for biodiversity maintenance and heterogeneity. Beating targeted the most species, followed by ground …
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A financial analysis of producing pellets from the encroacher bush Senegalia Mellifera as a potential livestock feed: A cost benefit analysis approach
… Namibia’s Livestock Producers are faced by bush encroachment that reduce the carrying capacity of agricultural land due the suppresion of perennial grasses and herbs thus limiting rangeland productivity. Namibia can stand to make about N$734.7 million annually from bush-based feed production …
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Modeling the potential impacts of vegetation change on the future climate of Southern Africa
… accounts for the potential impacts of natural bush encroachment and commercial forestation in the eastern part of South Africa, while the second accounts for the expansion of grass cover along the western region of the Grassland Biome in South Africa. The result s of this study agree with that …
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The effect of bush clearing on soil respiration in north-central Namibia: Cheetah conservation fund and Erichsfelde
… are a major concern for global climate change. Bush clearing in north-central Namibia has been used as a solution to problems of bush encroachment. However, the effect of bush clearing on soil processes, such as the carbon cycle and soil CO2 efflux has not yet been quantified in Namibia. The …
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Nutrient content and the effects of feeding four Namibian encroacher bush species on growth, methane production and carcass characteristics of Damara sheep
… the nutritional quality of four encroacher bush species (Senegalia mellifera, Dichrostachys cinerea, Terminalia sericea and Rhigozum trichotomum) was evaluated. Leaves and twigs (< 20mm stem diameter) harvested during the late dry, early rainy and late rainy seasons were analysed for …
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A cross sectional comparison of chemical treatment on plant biodiversity at Neudamm farm, Khomas region
… plant species, biomass yields, reduced bush density and enhanced the soil chemical properties.
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