Urban development impact on climate variability and surface water quality in part of Mangaung metropolis of South Africa

Dados Bibliográficos

ID21540920
AutoresSamson Senbore (0000-0002-7204-5756, Central University of Technology), Saheed Adeyinka Oke (0000-0003-4200-5187, Department of Civil Engineering, Faculty of Engineering Built Environment and Information Technology, Central University of Technology Bloemfontein, South Africa, autor correspondente)
Ano2023
Volume40
Fascículo2
Páginas293-312
Data de publicação2023-03-04
Peer ReviewedSim
Open AccessNão
TipoARTICLE
PeriódicoDevelopment Southern Africa (JOURNAL)
Identificadores do periódicoISSN: 0376-835X • E-ISSN: 1470-3637
EditoraInforma UK Limited (PUBLISHER • GB)
DOI10.1080/0376835x.2021.1993794
OpenAlexW3215994491
IdiomaEN
Referências citadas35

The overpopulation of urban centres accelerates land use patterns, slum creation and generation of contaminants. As such, this study seeks to investigate the impact of rapid urbanisation on climate variability and surface water quality around Mangaung metropolis. Remote sensing was employed to analyse land use land cover (LULC), normalized differential vegetation index (NDVI) and normalized differential water index (NDWI) changes for a period of 30 years in the Mangaung metropolis. Furthermore, the historical water quality of important rivers and dams were studied in respect of urban contamination. LULC revealed that the urban areas increased exponentially which led to increased loss of vegetation cover and shortage of water availability. The rainfall and water type evolution suggests the influence of urbanisation. This suggests urbanisation accelerates the loss of vegetation cover, thus causing an increase in temperature and reduction in the amount of rainfall, thereby reducing the surface water quantity in the study area

Climate change · Environmental protection · Geography · Land cover · Land use · Normalized Difference Vegetation Index · Physical geography · Urban climate · Urbanization · Water quality · Water resource management · Environmental Science · Flood Risk Assessment and Management · Hydrology and Drought Analysis · Land Use and Ecosystem Services · Ecology · Geology