Browsing Environmental Hydrology by Title
Now showing items 101-120 of 131
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Non point source pollution with specific reference to the Mkabela Catchment.
(2011)Non point source pollution (NPS) has long been the negated form of pollution within our natural systems. With an increase in the demand for quality crops and staple foods, there have been added pressures on water systems ... -
Performance of irrigation and water management systems in the lowveld of Zimbabwe.
(2004)In order to assess the performance of water management approaches and irrigation systems used by the sugar industry in the Lowveld of Zimbabwe, a sugarcane yield and irrigation systems simulation model was developed. The ... -
The potential impacts of up-scaled rainwater harvesting on ecosystem goods and services in the Potshini and Makanya catchments.
(2016)Water scarcity is fast becoming a global concern, with at least each continent facing water-related issues regarding quantity, quality and delivery. An estimated 8.8% of South Africans do not have access to potable water, ... -
The potential of micro-hydropower generation in the Inkomati River Catchment in Mozambique.
(2014)Hydropower is the leading source of renewable energy. It provides more than 97% of all electricity generated by renewable sources internationally. Small hydropower plants (SHPs) can be an alternative and a complement to ... -
Predicting emissions using an on-road vehicle performance simulator.
(2002)South Africa is coming under increasing pressure to conform to the rest of the world in terms of emissions regulations. The pressure is caused by a number of factors: international organisations requiring local companies ... -
Procedures for estimating gross irrigation water requirement from crop water requirement.
(2001)The goal of irrigation is to supply sufficient water for crop growth to all areas within a field. Therefore, the uniformity of application of irrigation water is of great importance. The objectives of this study were to ... -
Projected impacts of climate change on water quality constituents and implications for adaptive management.
(2013)The past few decades have seen, amongst other topical environmental issues, increased concerns regarding the imminent threat of global warming and the consequential impacts of climate change on environmental, social and ... -
Quantifying and benchmarking irrigation scheme performance with water balances and performance indicators.
(2007)South Africa is a water scarce country. As pressure on available water resources increases, irrigation, the largest consumer of water, has to find ways of improving water use efficiency. Benchmarking in the irrigation ... -
Quantifying hydrological fluxes of contributing hillslopes in the Weatherley catchment, N. E. Cape, South Africa.
(2009)Hillslope mechanisms and processes are a complex and dynamic set of interactions, but are nevertheless vital components of hydrology due to their critical interactions with surface and groundwater (Lorentz, 2001a). In ... -
Rainwater harvesting systems and their influences on field scale soil hydraulic properties, water fluxes and crop production.
(2009)South Africa, in common with many parts of Sub-Saharan Africa, is facing increasing water shortages. Limited available water arising from a low and poorly distributed rainfall, must supply domestic, agricultural, industrial ... -
Refinement of modelling tools to assess potential agrohydrological impacts of climate change in southern Africa.
(2001)Changes in climate due to anthropogenic influences are expected to affect both hydrological and agricultural systems in southern Africa. Studies on the potential impacts of climate change on agrohydrological systems had ... -
Reforestation effects on soil carbon sequestration and greenhouse gas fluxes from a former sugarcane plantation in Buffelsdraai reforestation site, South Africa .
(2017)Abstract available in PDF file. -
Simulation modelling of sugarcane harvest-to-crush delays.
(1998)Long delays between harvesting and crushing of sugarcane lead to excessive deterioration in the quality of sugarcane. The aim of this project was to develop a computer based model of sugarcane harvesting and delivery ... -
Spatial and temporal variations of water and nutrient fluxes within a steep-sloped agricultural catchment.
(2012)A proper understanding of the spatial and temporal variations of runoff and nutrient fluxes are critical in understanding catchment hydrology. Runoff and nutrient fluxes may exhibit large variations both spatially and ... -
Spatial assessment of optimum and sub-optimum growing areas for selected biofuel feedstocks in South Africa.
(2014)Energy production using fossil-based fuels (coal, oil and natural gas) has environmental and health effects that have the potential to endanger human welfare. Escalating oil prices and the contribution of carbon dioxide ... -
A study on reducing primary transport costs in the South African timber industry.
(2005)Harvesting and transport accounts for up to 70% of the total production cost of roundwood in South Africa. This invokes an interest to improve harvesting systems through the introduction of improved equipment, road networks ... -
Techniques for assessing impacts of projected climate change on agrohydrological responses in the Limpopo catchment.
(2011)Climate detection studies point to changes in global surface temperature and rainfall patterns over the past 100 years, resulting from anthropogenic influences. Studies on the analysis of rainfall patterns [1950 – 1999] ... -
Techniques for assessing the impacts of wetlands on hydrological responses under varying climatic conditions.
(2011)Wetlands are considered sensitive eco-tones that provide numerous goods and services, not only to the communities which are immediately dependent upon them, but also to the many downstream stakeholders who benefit from ... -
The feasibility of automatic on-board weighing systems in the South African sugarcane transport industry.
(2009)Sugarcane hauliers in South Africa have high variations in vehicle payloads, which influence both transport economics and the legitimacy of their operations. Increasing economic pressure due to declining sugar prices and ...