Browsing Environmental Hydrology by Title
Now showing items 74-93 of 131
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The feasibility of desalination as an alternative means of water supply to Zinkwazi town.
(2005)Desalination of seawater is a widely used technology throughout the world, but is not commonly used in South Africa for domestic water supply. The reasons for this are varied, but very often are based on the assumption ... -
Flood routing in ungauged catchments using Muskingum methods.
(2005)River stage or flow rates are required for the design and evaluation of hydraulic structures. Most river reaches are ungauged and a methodology is needed to estimate the stages, or rates of flow, at specific locations in ... -
Ground and satellite-based assessment of hydrological responses to land cover change in the Kilombero River Basin, Tanzania.
(2013)Changes in land use and land cover are a global issue of concern, especially with regard to possible impacts on biophysical processes which affect the hydrological functioning of a system. Tanzania is no exception to ... -
A high resolution digital system for automated aerial surveying.
(2000)Resource managers frequently require moderate to high resolution imagery within short turnaround periods for use in a GIS-based management system. These spatial data can greatly enhance their ability to make timely, ... -
Hillslope experiments in the north east Cape region to measure and model subsurface flow processes.
(1997)Several hydrological studies claim that available water resources in a catchment are affected by large scale afforestation, especially where the regional rainfall is considered marginal for the support of silviculture. ... -
The hydrological basis for the protection of water resources to meet environmental and societal requirements.
(2006)In common with other natural systems, aquatic ecosystems provide a wealth of economically valuable services and long-term benefits to society. However, growing human populations, coupled with increased aspirations for ... -
Hydrological connectivity in selected pristine catchments in the Kruger National Park.
(2014)The understanding of interactions between hydrological processes is essential, especially in water limited ecosystems in semi-arid environments. It is through this understanding that informed planning and management decisions ... -
Hydrological modelling applications for water resources management in the Mkomazi Catchment.
(2001)Predictions that water shortages will constrain economic growth in South Africa by 2025 have led to increased concerns among water resource managers that there is a need for comprehensive water management strategies. To ... -
The hydrosalinity module of ACRU agrohydrological modelling system (ACRUsalinity) : module development and evaluation.
(2003)Water is characterised by both its quantity (availability) and its quality. Salinity, which is one of the major water quality parameters limiting use of a wide range of land and water resources, refers to the total dissolved ... -
Impact of irrigation with gypsiferous mine water on the water resources of parts of the upper Olifants basin.
(2007)The generation of large quantities of mine wastewater in South African coal mines and the needs for a cost effective, as well as an environmentally sustainable manner of mine water disposal, have fostered interests in the ... -
Impact of SOx and NOx deposition on the leaching behaviour of soils and water quality in the South African highveld.
(2014)Atmospheric emissions of sulphur and nitrogen oxides lead to the formation of acid rain, which, when deposited, can result in soil and water acidification. Cases of soil and water acidification have been reported in temperate ... -
The impacts of future urban growth on streamflow in the Mgeni catchment.
(2012)Natural vegetation has been converted to land uses, such as agriculture, commercial forestry and urban use, to meet increasing human demands for food, fuel and shelter. These land use changes modify the surface ... -
The impacts of woody invasive alien plants on stream hydrogeomorphology in small headwater streams of KwaZulu-Natal.
(2010)South Africa has a long history of problems with invasive alien species. In an assessment of alien invading plants and water resources in South Africa Versveld et al. (1998) estimated that Invasive Alien Plants (IAPs) in ... -
Improved estimation of catchment rainfall for continuous simulation modelling.
(2005)Long sequences of rainfall at fme spatial and temporal details are increasingly required, not only for hydrological studies, but also to provide inputs for models of crop growth, land fills, tailing dams, disposal of liquid ... -
In-field evaluation of irrigation system performance within the sugarcane industry of the south-east Lowveld in Zimbabwe.
(2007)The near collapse of the Zimbabwean sugarcane industry in 1991/1992 was concluded to be as a result of critical water shortages. This, combined with the uncertainty in the availability of water and a climate characterised ... -
Influence of land cover degradation on the water balance of the Northern Drakensberg high altitude mesic grasslands, South Africa.
(2022)Mountainous regions provide vital ecosystem services, such as water provisions to low land areas. However, these regions are also considered sensitive to the effects of environmental change, due to their high levels of ... -
The influence of scale and parent material on hillslope hydrological processes in Kruger National Park.
(2014)Semi-arid savannas are dynamic and complex systems controlled by fire, nutrient and water availability where water is the major driving force controlling the biological activity in these systems. Knowledge of hydrological ... -
Integrated water resources management studies in the Mbuluzi Catchment, Swaziland.
(2001)Problems in the water sector range from degradation and depletion of water resources as a result of the impacts of land based anthropogenic activities, to the impacts of natural hydrological disasters and floods, while ... -
Integrating hydro-climatic hazards and climate changes as a tool for adaptive water resources management in the Orange River Catchment.
(2012)The world’s freshwater resources are being placed under increasing pressure owing to growth in population, economic development, improved standards of living, agricultural intensification (linked mainly to irrigation), ... -
Integrative policy instruments for implementing the National Water Act : a case study of the Mgeni Catchment.
(2013)South Africa experienced a paradigm shift with the introduction of the National Water Act in 1998 (NWA). Previously, water resource management was based on a centralized approach. Today, it is framed by the Integrated Water ...