Research Articles (Earth Sciences)

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https://hdl.handle.net/10566/273

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Browsing by Subject "Agrarian studies"

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    Impacts of groundwater and climate variability on terrestrial groundwater dependent ecosystems: A review of geospatial assessment approaches and challenges and possible future research directions
    (Taylor and Francis Group, 2022) Chiloane, Chantel; Dube, Timothy; Shoko, Cletah
    Terrestrial groundwater dependent vegetation (TGDV) are crucialecosystems which provide important goods and services such ascarbon sequestration, habitat, water purification and aestheticbenefits in semi-arid environments. Global climate change andanthropogenic impacts on surface water resources have led toincreased competing claims on groundwater resources to meetan exponential water demand for environmental needs, agricul-tural and developmental needs. This has led to the unsustainableexploitation of groundwater resources, resulting in groundwatertable declines, threatening the sustainability of TGDV. It is on thispremise that the review aims to provide a detailed overview onthe progress in remote sensing of TGDV.
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    Progress in the use of geospatial and remote sensing technologies in the assessment and monitoring of tomato crop diseases
    (Taylor and Francis Group, 2022) Mothapo, Mologadi Clodean; Dube, Timothy; Abdel-Rahman, Elfatih
    With a growing global population and accelerating climatechange, systematic assessment and monitoring of crop diseases isurgently required to ensure food security and production.However, current dietary transitions inclined towards vegetablessuch as tomatoes are expected to increase while effective cropdisease monitoring and assessment methods are still limited.Therefore, a state-of-the-art review of progress in the assessmentand monitoring of tomato crop diseases using geospatial technol-ogies is presented. Results show that tomato crop diseases andtheir severity could be detected and discriminated from healthyones more effectively using various remote sensing systems.Furthermore, the recent advances in RS technologies have greatlyfacilitated its integration with climatic and topo-edaphic factors todetermine the possible drivers of disease infection.