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Now showing items 31-40 of 266
A three-tier approach to protect groundwater resources in South Africa
(Water Research Commission, 1995)
The quality of groundwater is affected by many activities occurring on the surface of the earth. A pro-active protection approach is required to avoid the costly and technology difficult exercise of groundwater remediation. ...
Book review: estimating groundwater recharge
(Springer Verlag, 2011)
Determining optimal new generation satellite derived metrics for accurate C3 and C4 grass species aboveground biomass estimation in South Africa
(MDPI, 2018)
While satellite data has proved to be a powerful tool in estimating C3 and C4 grass species
Aboveground Biomass (AGB), finding an appropriate sensor that can accurately characterize the
inherent variations remains a ...
Intellectual laziness and academic dishonesty: A threat to academic freedom?
(South African Assn. For The Advancement Of Science, 2020)
Academic freedom freedom matters; it matters a great deal. It is a sine qua non for the the success of our science system . When scientists scientists invoke academic academic freedom whenever they they are are expected ...
Near real time water quality monitoring of Chivero and Manyame lakes of Zimbabwe
(Copernicus Publications, 2018)
Zimbabwe’s water resources are under pressure from both point and non-point sources of pollution
hence the need for regular and synoptic assessment. In-situ and laboratory based methods of water quality monitoring
are ...
Transformation between phreatic water and soil water during freeze–thaw periods
(MDPI, 2018)
During freeze–thaw periods, the exchange between shallow groundwater and soil water is
unusually strong and bidirectional, which causes soil salinization and affects the accuracy of water
resources assessment. The ...
An overview of trace elements in soils of Keana-Awe Brine-Fields, Middle Benue Trough, Nigeria
(Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2017)
The objective of this study was to determine the concentration of trace elements in soils of Keana-Awe brine-fields. Composite soil samples were randomly collected at a depth of 0–15 cm and were analysed for molybdenum, ...
Effect of landcover/land-use changes on water availability in and around Ruti Dam in Nyazvidzi catchment, Zimbabwe
(Water Research Commission, 2018)
The aim of this study was to quantify the upstream land-use and landcover changes and assess their effect on Ruti Dam levels
and water availability in Nyazvidzi catchment. Remote-sensing techniques, hydrologic modelling ...
Water materialities and citizen engagement: Testing the implications of water access and quality for community engagement in Ghana and South Africa
(Taylor & Francis, 2017)
We analyze the relationship between perceptions of domestic water access, and quality, in
relation community engagement. While others have suggested linkages between material
conditions of water access and engagement ...
Water use dynamics of young and mature apple trees planted in South African orchards: a case study of the Golden Delicious and Cripps’ Pink cultivars
(Copernicus Publications, 2018)
Apple orchards have previously been bearing 60–80 t ha-1 at most. However in recent years yield
has increased to more than 100 t ha-1. There is need to understand the water requirements of the high yielding
orchards, ...