Browsing by Author "Mazvimavi, Dominic"
Now showing items 1-14 of 14
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Assessing the variation of river channel reach inflows on transmission losses
Mazvimavi, Dominic; Mujere, Never; Masocha, Mhosisi; Makurira, Hodson (World Water Policy, 2022)Arid and semi-arid regions are characterized by limited water availability throughout the year and highly variable streamflows. River channel transmission losses add another uncertainty to the complex flow regimes. However, ... -
Correction: sibanda et al. application of drone technologies in surface water resources monitoring and assessment: a systematic review of progress, challenges, and opportunities in the global south. drones 2021, 5, 84
Dube, Timothy; Mazvimavi, Dominic; Sibanda, Mbulisi; Mutanga, Onisimo (Drones, 2022)In the original publication [1], “Fahad Alawadi. Detection of surface algal blooms using the newly developed algorithm surface algal bloom index (SABI)”, “Proc. SPIE 7825, Remote Sensing of the Ocean, Sea Ice, and Large ... -
Dynamics and scales of transmission losses in dryland river systems: a meta-analysis
Mazvimavi, Dominic (AUSTRALASIAN JOURNAL OF WATER RESOURCES, 2021)In this paper, 245 studies were reviewed to understand approaches used for estimating river channel transmission losses. Findings indicate that regression equations, differential equations, flow routing, experimental ... -
Effect of different irrigation systems on water use partitioning and plant water relations of apple trees growing on deep sandy soils in the mediterranean climatic conditions, South Africa
Ntshidi, Zanele; Mazvimavi, Dominic; Mobe, Nompumelelo Thelma (Elsevier, 2023)All commercial apple fruit (Malus Domestica (Borkh) exported from semi-arid regions are grown under irrigation with drip and micro sprinkler systems being the most widely used. Few studies have directly compared the ... -
Influence of multiple uses of water on the sustainability of communally-managed rural water supply systems in Zimbabwe
Kativhu, Tendai; Mazvimavi, Dominic; Tevera, Daniel (IWA Publishing, 2021)The utilisation of drinking water supply systems for productive uses is not a new practice in Zimbabwe and the world over. This study sought to explore how multiple uses of water, in this case community gardening as a ... -
Investigating changes over time of annual rainfall in Zimbabwe
Mazvimavi, Dominic (Copernicus Publications, 2010)There is increasing concern in southern Africa about the possible decline of rainfall as a result of global warming. Some studies concluded that average rainfall in Zimbabwe had declined by 10% or 100 mm during the ... -
Leveraging Google Earth Engine platform to characterize and map small seasonal wetlands in the semi-arid environments of South Africa
Gxokwe, Siyamthanda; Dube, Timothy; Mazvimavi, Dominic (Elsevier, 2021-07)Although significant scientific research strides have been made in mapping the spatial extents and ecohydrological dynamics of wetlands in semi-arid environments, the focus on small wetlands remains a challenge. This is ... -
Leveraging Google Earth engine platform to characterize and map small seasonal wetlands in the semi-arid environments of South Africa
Gxokwe, Siyamthanda; Dube, Timothy; Mazvimavi, Dominic (Elsevier, 2022)Although significant scientific research strides have been made in mapping the spatial extents and ecohydrological dynamics of wetlands in semi-arid environments, the focus on small wetlands remains a challenge. This is ... -
Multispectral remote sensing of wetlands in semi-arid and arid areas: A review on applications, challenges and possible future research directions
Gxokwe, Siyamthanda; Dube, Timothy; Mazvimavi, Dominic (Remote Sensing, 2022)Wetlands are ranked as very diverse ecosystems, covering about 4–6% of the global land surface. They occupy the transition zones between aquatic and terrestrial environments, and share characteristics of both zones. Wetlands ... -
Remotely sensed applications in monitoring the spatio-temporal dynamics of pools and flows along non-perennial rivers: A review
Maswanganye, Sagwati Eugene; Dube, Timothy; Mazvimavi, Dominic (Taylor and Francis Group, 2022)Non-perennial rivers (NPRs) account for more than 50% of the world’s river network and their occurrence is expanding. Some rivers that were previously classified as perennial have evolved to be NPRs in response to climate ... -
A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L.) wetlands in Africa
van Dam, A. A.; Kipkemboi, J.; Mazvimavi, Dominic; Irvine, K. (Springer Verlag, 2014)Papyrus wetlands (dominated by the giant sedge Cyperus papyrus L.) occur throughout eastern, central and southern Africa and are important for biodiversity, for water quality and quantity regulation and for the livelihoods ... -
Using cloud computing techniques to monitor long-term variations in ecohydrological dynamics of small seasonally-flooded wetlands in semi-arid South Africa.
Gxokwe, Siyamthanda; Dube, Timothy; Mazvimavi, Dominic; Grenfell, Michael (Journal of Hydrology, 2022)Wetlands in drylands have high inter- and intra-annual ecohydrological variations that are driven to a great extent by climate variability and anthropogenic influences. The Ramsar Convention on Wetlands encourages the ... -
Using sap flow data to assess variations in water use and water status of apple orchards of varying age groups in the western cape province of South Africa
Mazvimavi, Dominic; Mobe, Nompumelelo Thelma; Dzikiti, S. (Water Research Commission, 2020)No accurate quantitative information currently exists on how water use of apple (Malus domestica) orchards varies from planting to full-bearing age, leading to poor irrigation and water allocation decision making. This ... -
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
Ntshidi, Zanele; Dzikiti, Sebinasi; Mazvimavi, Dominic (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, ...