Browsing Environmental Hydrology by Title
Now showing items 107-126 of 131
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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 ... -
Tools to assess the ecohydrological impacts of water system innovations
(2009)Water scarce countries such as South Africa are subject to various hydrological constraints, particularly within resource poor farming communities that are reliant on rainfed agriculture. Recent initiatives to address this ... -
Total evaporation estimation from sugarcane using the scintillation technique.
(2006)Ongoing concerns about the efficient and sustainable utilisation of South Africa’s water resources have resulted in much interest regarding the water use of different land uses within a catchment. Research has been focussed ... -
Towards improved parameter estimation in streamflow predictions using the ACRU model.
(2002)An unresolved problem in hydrology has been to establish relationships between catchment attributes and the flow characteristics of the stream. Such information is commonly sought to improve streamflow predictions, often ... -
Transient pressure waves in hillslopes.
(2013)Previous studies found that during a rainfall event, pre-event water, which exists in the catchment before the event, may appear in significant amounts in the stream stormflow hydrograph. Pre-event water is predominantly ... -
Understanding agricultural innovation adoption processes and garden scale water use through farmer-driven experimentation
(2008)A holistic approach to agricultural innovation development and extension is needed to -
Validation of a vehicle performance modelling system.
(2007)Transport costs can account for a significant portion of the total production costs in an agricultural system. In order to ensure maximum efficiency of a transport operation, the transport manager is required to select a ...