Browsing Faculty of Natural Science by Author "Dube, Timothy"
Now showing items 1-17 of 17
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An assessment of river and wetland morphology dynamics using geospatial techniques
Mbambi, Yamkela (University of the Western Cape, 2023)Land surface modification has intensified in recent years, and it continues to be an ongoing process. This raises serious concerns about changes in land use and land cover (LULC) since some of these changes have led to ... -
Determining crop coefficients for irrigated fruit tree crops using readily available data sources
Mashabatu, Munashe (University of the Western Cape, 2022)The climate variability and climate change-induced events experienced worldwide have caused a significant decrease in the rainfall volume. South Africa is considered to be one of the driest countries in the world, as it ... -
Developing a remotely-sensed framework for fire monitoring in the Western Cape, South Africa
Graham, Earl Vincent (University of Western Cape, 2021)For a long time, fire dynamics has been misunderstood and viewed as either a destructive force or an ecological necessity. The Western Cape Province in South Africa experiences the frequent occurrence of fires, due to the ... -
Developing an integrated remotely sensed framework for the detection and monitoring of seasonally-flooded wetlands in semi-arid environments of southern Africa
Gxokwe, Siyamthanda (University of the Western Cape, 2022)Wetlands are among the most important ecosystems on earth; they cover approximately 4-6% of the earth’s surface and offer critical eco-hydrological services. However, these ecosystems are under threat from anthropogenic ... -
Greywater reuse - An assessment of health and nutritional quality of home gardens produce in rural South Africa
Radingoana, Makgalake Pabalelo (University of Western Cape, 2021)The majority of rural communities in sub-Saharan Africa are predominantly poor and depend largely on small-scale subsistence farming. To date, various farming mechanisms (e.g. organic farming, crop rotation, agroforestry ... -
The impact of land use and land cover changes on wetland productivity and hydrological systems in the Limpopo transboundary river basin, South Africa
Thamaga, Kgabo Humphrey (University of Western Cape, 2021)Wetlands are highly productive systems that act as habitats for a variety of flora and fauna. Despite their ecohydrological significance, wetland ecosystems are under severe threat as a result of environmental changes (e.g. ... -
Multispectral remote sensing of the impacts of drought and climate variability on water resources in semi-arid regions of the Western Cape, South Africa
Bhaga, Trisha (University of Western Cape, 2021)The occurrence of droughts is a threat to global water resources and natural ecosystems, with the impact being more profound in semi-arid environments. The frequency of droughts is likely to increase because of climate ... -
Multispectral remote sensing of vegetation responses to groundwater variability in the greater floristic region of the Western Cape, South Africa
Chiloane, Chantel Nthabiseng (University of Western Cape, 2021)Groundwater dependent vegetation (GDV) communities are increasingly threatened by the transformation of the natural environment to different land use/land cover, over-exploitation of groundwater resources and the proliferation ... -
Remote sensing and multispectral imaging of hydrological responses to land use/land cover and climate variability in contrasting agro-ecological systems in Mountainous catchment, Western Cape
Govender, Tanushri (University of the Western Cape, 2022)Water is a fundamental resource and key in the provision of energy, food and health. However, water resources are currently under severe pressure as a consequence of climate change and variability, population growth and ... -
Remote sensing drought impacts on wetland vegetation productivity at the Soetendalsvlei in the Heuningnes Catchment, South Africa
Ndlala, Noluthando (University of Western Cape, 2021)This work aimed at assessing the response of wetland vegetation productivity to the 2014-2017 climate-induced drought at the Soetendalsvlei wetland system in the Western Cape province of South Africa. To achieve this ... -
Spatial and temporal dynamics of flows and pools along non-perennial rivers in arid and semi-arid areas, South Africa
Maswanganye, Sagwati Eugene (University of the Western Cape, 2023)This study aimed to assess the use of multi-source remotely sensed data for monitoring the spatial distribution and dynamics of pools in two distinct sites (Touws and Molototsi) in South Africa. Various water extraction ... -
Spatial characterization of vegetation diversity with satellite remote sensing in the khakea-bray transboundary aquifer
Mpakairi, Kudzai Shaun (University of Western Cape, 2022)There have been increasing calls to monitor Groundwater-Dependent Ecosystems (GDEs) more effectively, since they are biodiversity hotspots that provide several ecosystem services. The accurate monitoring of GDEs is an ... -
Spatial modelling of invasive species distribution in water-limited environments using remotely sensed data and climatic scenarios in the Heuningnes catchment, South Africa
Mtengwana, Bhongolethu (University of Western Cape, 2020)The occurrence and spread of Invasive Alien Plants (IAPs) is a threat to global water resources and natural ecosystems due to high water use rates. With the current climate change projections and their ability to survive ... -
Understanding Striga occurrence and risk under changing climatic conditions across different agroecological farming systems at local and regional scales122
Mudereri, Bester Tawona (University of Western Cape, 2020)The invasion by Striga in most cereal crop fields in Africa has posed an acute threat to food security and socioeconomic integrity. Consequently, numerous technological and research developments have been made to minimize ... -
The use of remote sensing data for assessing water quality in wetlands within the Limpopo River Basin
Dzurume, Tatenda (University of the Western Cape, 2021)Wetlands are unique ecosystems that are acknowledged among the world’s most productive and valuable ecosystems. They are recognized as being essential to sustainable development and human welfare due to their unique ... -
The use of remote sensing data for assessing water quality in wetlands within the Limpopo River Basin
Dzurume, Tatenda (University of the Western Cape, 2021)Wetlands are unique ecosystems that are acknowledged among the world’s most productive and valuable ecosystems. They are recognized as being essential to sustainable development and human welfare due to their unique ... -
Use of remotely sensed data and spatial modelling techniques to assess impacts of different land management practices on surface water quality
Cloete, Danielle (University of the Western Cape, 2023)The study uses remote sensing and statistical techniques in assessing land use land cover impacts on surface water quality in the Heuningnes Catchment, Cape Agulhas, South Africa. Firstly, a review of the advancements made ...