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Now showing items 663-676 of 676
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Vegetation patterns and nutrients in relation to grazing pressure and soils in the sandveld and hardveld communal grazing areas of Botswana.
(Taylor & Francis Online, 2009-11-12)A 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 ... -
Wastewater treatment using vegetated submerged bed constructed wetlands for nitrogen removal
(Washington State University, 2006-12)Vegetated submerged bed (VSB) constructed wetlands are engineered, low operation and maintenance cost wastewater and stormwater treatment technologies primarily designed for small facilities. The objectives of this ... -
Water abstraction of invasive Prosopis juliflora and native Senegalia senegal trees: A comparative study in the Great Rift Valley Area, Ethiopia
(Elservier, 2023)Besides direct water abstraction, natural water scarcity in semi-arid and arid regions may be further exacerbated by human-assisted changes in vegetation composition, including the invasion by non-native plant species. ... -
Wet deposition of 210Pb aerosols over two areas of contrasting topography
(Institute Of Physics Publishing Ltd, 2006-11-24)Deposition fluxes of 210Pb on low and moderately high-elevation sites of Edinburgh (Scotland) and mid-Wales, respectively, have been measured. The excess 210Pb fluxes in moorland Edinburgh soils did not vary significantly ... -
Wheat (Triticum aestivum L.) yields and protein profiles under varying plant densities, nitrogen doses and planting time in Botswana
(Botswana University of Agriculture & Natural Resources, 2020-02)Field studies were conducted at the Botswana University of Agriculture and Natural Resources, Sebele, Gaborone, to determine the effects of planting densities, nitrogen application rate, and planting time, on two wheat ... -
When the order matters: Impacts of lignin removal and xylan conformation on the physical structure and enzymatic hydrolysis of sugarcane bagasse
(Elsevier, 2022-06)Dilute acid and alkaline pretreatments are commonly used to fractionate lignocellulosic biomass for its conversion into biofuels and renewable materials. In the current work, we compare the structure and morphology of one ... -
“Where there is water there is fish” – Small-scale inland fisheries in Africa: dynamics and importance
(2015)The importance of fish, and in particular small fish, for sustainable and healthy livelihoods in Africa, as well as their strong relationship with climate driven water dynamics are generally undervalued and little understood ... -
Wildfire prediction and monitoring in the rangeland areas of Botswana: a case study of Kgalagadi district
(Botswana University of Agriculture & Natural Resources, 2023-01)Fire is a critical tool for managing rangeland ecosystems, particularly in the savannah. However, the increasing wildfire occurrence poses a considerable danger to rangeland ecosystem continuity. Burned area extent and ... -
Wildfires in Botswana and Their Frequency of Occurrence
(Scientific Research Publishing, 2021-09-13)Fires play an essential part in the maintenance of the environment, but am- plified fire activity often leads to adverse effects in the environment such as destruction of property and loss of life. Botswana has experienced ... -
Wildlife-livestock interface, veterinary cordon fence damage, lack of protection zones, livestock theft and owner apathy: Complex socio-ecological dynamics in Foot and Mouth disease control in southern Africa
(Springer Open, 2016-10-26)Current efforts to control and possibly eradicate the highly contagious and economically important Foot and Mouth disease (FMD) in Botswana are hampered by numerous inextricably linked constraints. These constraints were ... -
Woodland resources and management in southern Africa.
(Klaus Hess Publishers, 2018)The countries of southern Africa have an average forest cover of 32% with most forest situated in the tropics. These dry to moist forests are deciduous with a few evergreen species. The open canopy allows enough light to ... -
Working horses welfare assessment and their owners perceive in middle and north Darfur states Sudan
(Elservier, 2022-07-09)Working horses in Low and Middle income countries have a significant impact on people’s lives. In spite of their best, the well-being of Sudanese working horses are neglected. There is no information on Sudanese ... -
xpression of Anaplasma marginale Ankyrin Repeat-Containing Proteins during Infection of the Mammalian Host and Tick Vector
(American Society for Microbiology, 2011)Transmission of tick-borne pathogens requires transition between distinct host environments with infection and replication in host-specific cell types. Anaplasma marginale illustrates this transition: in the mammalian host, ... -
Yield and Yield Attributes of Tomato as Influenced by Organic Fertilizer
(SCIENCEDOMAIN international, 2016-03-31)A field experiment was established at the Botswana University of Agriculture and Natural Resources to evaluate the effects of organic fertilizer on yield and yield attributes of tomato from October 2014 to March 2015. The ...
