Browsing Natural Sciences by Title
Now showing items 1-20 of 29
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Bathymetry of Makoye reservoir and its implications on water security for livestock within the catchment
(Conscientia Beam, 2019-09-01)The objectives of the study were to: determine bathymetry of the reservoir; understand seasonal hydrological regimes of the reservoir; determine factors influencing reservoir bathymetry and, examine the implications of the ... -
Bathymetry of the Makoye reservoir and its implications on water security for livestock within the catchment
(International Journal of Geography and Geology, 2019)The objectives of the study were to: determine bathymetry of the reservoir; understand seasonal hydrological regimes of the reservoir; determine factors influencing reservoir bathymetry and, examine the implications of the ... -
The catchment sediment budget as a management tool
(Environmental science & p o li c y, 2008)There is increasing recognition that fine sediment represents an important diffuse source pollutant in surface waters, due to its role in governing the transfer and fate of many substances, including nutrients, heavy ... -
Documenting catchment suspended sediment sources: problems, approaches and prospects
(Progress in Physical Geography, 2004)Establishing catchment suspended sediment sources is fraught with difficulty. Data collection comprises indirect and direct approaches and an overview is provided. The indirect approach uses a range of techniques to ... -
An ecological survey of the termites (Isoptera) of Lochinvar National Park, Zambia
(Journal of the Entomological Society of Southern Africa, 1986)As a follow up to investigations already carried out for certain vertebrates, this article presents the first record of the Isoptera of Lochinvar National Park. 23 species have been collected there from three different ... -
Effects of Sedimentation on small reservoirs in the Mushibemba catchment, Mkushi farm block, Central Zambia
(Journal of Geography and Geology;, 2019)Sedimentation is one of the problems that affects the storage capacity of most small reservoirs, and if not addressed on time it may lead to the dams being filled up with sediment. The aim of this study was to assess the ... -
Evaluating ceres-maize model using planting dates and nitrogen fertilizer in Zambia
(Journal of Agricultural Science, 2015-02-15)A field experiment was conducted during the 2013/2014 season to evaluate the performance of CERES-maize model in simulating the effect of date of planting, nitrogen fertilizer and root-zone soil water profile on growth and ... -
Handbook
(2012-05-18)Physics is the most fundamental of the Natural Sciences. It is the parent science of Biology, Chemistry, Geology and Engineering, which are but specialisations in areas, which are ultimately a part of Physics. For this ... -
Impacts on freshwater macrophytes produced by small invertebrate herbivores: afrotropical and neotropical wetlands compared
(Hydrobiologia, 2020)We compare invertebrate herbivory upon 13 macrophyte species in freshwater wetland systems located in two global ecozones, the Afrotropics and Neotropics, in the context of biotic and environmental factors influencing these ... -
Learning for climate change adptation among selected communities of Lusaka Province in Zambia
(AJOL, 2017-09-03)This research was aimed at surveying perceptions of climate change and educational themes that would be contextually relevant for climate change adaptation. It locates within the United Nations’ Educational, Scientific ... -
Niche-breadth of freshwater macrophytes occurring in tropical Southern African rivers predicts species global latitudinal range
(Elsevier, 2016)The study tested the hypothesis that measurement, using multivariate Principal Components Analysis (PCA), of the niche-breadth of river macrophyte species in southern tropical Africa, may predict their larger-scale ... -
Occurence , severity and magnitude of hydrological drought in Zambia :impacts and implications
(1999)Persistent occurrence of drought under increasing water supply demands for municipalities and agriculture, and under increased threat of global warming, requires increased understanding of drought characteristics and ... -
Problems of sedimentation in small dams in Zambia
(Human Impact on Erosion and Sedimentation, 1997)An inventory of small dams in Zambia and the results of a preliminary analysis of sediment loads for rivers and reservoirs are reported. A regression approach was used to determine relationships between drainage area and ... -
Rainfall variability, drought and implications of its impacts on Zambia, 1886-1996
(1998)The theory of runs was used in the investigation of frequency of occurrence, duration, magnitude and severity of drought in 46 districts of Zambia, 1886-1996. The 30-year "normal" rainfall was used as the threshold for ... -
Reflexive debate on use of philosophy in scienctific research
(ARC, 2020-06-01)How should philosophy be used in scientific research? is the question addressed in this paper. The aim of this desktop research was to critically contribute to the already ongoing debate around the use of philosophy ... -
Resistance status of ticks (Acari; Ixodidae) to amitraz and cypermethrin acaricides in Isoka District, Zambia
(University of Zambia, 2015-08)This study was designed to obtain data on the farmer’s approach to tick control and to determine whether Rhipicephalus appendiculatus Neuman, Amblyomma variegatum (Fabricius), and Rhipicephalus (Boophilus) microplus ... -
A review of coupled hydrologic-hydraulic models for floodplain assessments in africa: opportunities and challenges for floodplainwetland management
(Multidisciplinary Digital Publishing Institute(Hydrology), 2021)Floodplain wetlands are a fundamental part of the African continent’s ecosystem and serve as habitat for fish and wildlife species, biodiversity, and micro-organisms that support life. It is generally recognised that ... -
Sedimentation and its effects on selected small dams east of Lusaka, Zambia
(Academic star publishing company, 2015)In Zambia, the need to conserve water resources has resulted in the construction of small dams. However, small dams are adversely impacted by sedimentation. The aim of this study was to assess the water storage capacity ... -
Special study on sediment discharge and Its consequences (SedSS)
(United Nations Development Programme/Global Environment Facility (UNDP/GEF), 1999)Lake Tanganyika is among Zambia's important fisheries which require protection from adverse impacts. Sedimentation is one of the threats to Lake Tanganyika's biodiversity. This is because deposition of sediment clogs streams ...
