Browsing by Author "Ola, A. B"

Now showing 1 - 5 of 5
  • Item
    Anthropogenic Activities and their Impacts on Biodiversity Survival in Ifelodun Local Government Area, Kwara State, Nigeria
    (University of Ilorin, Department of Surveying and Geoinformatics, 2020-06) Ola, A. B; Adewale, Y.Y; Raheem, W.A; Afonja, A.A
    Biodiversity plays a significant role in the socio-economic development of man. Therefore, careful use of biodiversity is an essential requirement for sustained global development. However, available data points to a high rate of biodiversity loss especially in developing countries which has been attributed to a combination of human-induced factors, including rising demand for and consumption of natural resources. This paper identifies those human activities that result in irreversible loss of biodiversity using the Ifelodun Local Government Area of Kwara State as an example. A structured questionnaire containing information on the people’s activities influencing biodiversity loss, the effects of biodiversity loss, and socio-economic characteristics among other questions were randomly administered to 250 residents of the Local Government Area. Residents Agreement Index (RAI), descriptive statistics (frequencies and percentages) and, regression analysis were used to explain the causes and effects of biodiversity loss. Ten major activities were identified to be influencing irreversible biodiversity loss. They are, cattle rearing (1.21), logging (0.89), road construction (0.81), culture (0.79) and herb harvesting (0.59), poaching (-0.69), farming (-0.61), Industrial activities (- 1.59), energy generation (-1.32) and settlement development (-0.05). Theeffects of biodiversity loss include poor crop yield (43.2%), soil erosion (31%), a threat of desertification (12%), reduction in the number of wildlife (9.6%), reduction in timber production (4.2%). The results of the regression analysis show that biodiversity loss is a function of the socio- economic characteristics of people. The paper concluded that though the socio-economic development of a society is attached to its biodiversity exploitation, careful, diligent, and sustainable use of these resources is required.
  • Item
    Development Drivers of Informal Waste Collection in Ibadan, Nigeria
    (Department of Geography and Environmental Management, University of Port Harcourt, Nigeria, 2020) Ola, A. B; Raheem, W.A; Jimoh, M.Y; Suleiman, A.R; Raheem W.M
    This paper examined the factors influencing the emergence and expansion of informal waste collection in waste management sector of Ibadan, Oyo State capital. Snowball sampling technique was used to identify and sample 253 informal waste collectors across the five municipal local government areas in the city. A pretested structure questionnaire was used to obtained information from the sampled informal waste collectors. Data collected were analysed using Relative Importance Index (RII), 8 x 8 correlation matrix and factor analysis. Eight major factors were identified as influencing the emergence and expansion of informal waste collection. RII showed that in ranked order of importance, they are: poverty; unavailability of better job; profitability; demand for waste management services; low start-up capital; ease of entry; pressure from parents and guardians and low-skill requirement. The correlation matrix indicated that all the factors correlated positively with one another. The Kaiser-Meyer-Olkin Measure of Sample Adequacy (KMO) value of 0.573 and Bartlett’s Test of Sphericity of p≤ 0.001 established the adequacy of the variables loaded for the analysis. It is concluded that policies and programmes that will enhance integration of IWCs to municipal waste management scheme of the city and check child labour in the sector will go a long way in making the sector more effective in municipal waste management
  • Item
    Effective Management of Storm water in Ibeju–Lekki Local Government Area of Lagos State, Nigeria
    (Department of Civil Engineering, Ladoke Akintola University of Technology, Ogbomoso, 2020-09) Raheem, W.M; JImoh, M.Y; Ola, A. B; Raheem, W.A; Sulieman, A.R; Ibrahim, M
    In recent years, many cities and rural areas are facing frequent waterlogging, run-of pollution, huge loss of resourceful rainwater, damaged ecosystem and many more rain water related problems. In regional perspective, how to construct a sustainable storm water management measures have been presented as an important issue in many cities and urban agglomeration in Nigeria. Ibeju Lekki area is usually faced with the problem of rain water leading to incessant flooding. This study therefore assesses storm water management in Ibeju-Lekki Area, Lagos state. The research employs a random sampling technique in selecting 204 (0.07  ) respondents for questionnaire administration. Descriptive and inferential statistical tools were employed in the analysis of the data. Pearson product moment correlation was used to test the relationship between the gradient analysis and vulnerability to runof of Ibeju-Lekki. Also, the slope analysis of the study area was carried out using slope calculation. Findings revealed that natural green space, public parks and gardens and drainage system were the most available storm water management infrastructure in the area. The result of correlation analysis with r = 0.971 shows a strong positive correlation between gradient and vulnerability to runoff . The study concluded that physical planning policies such as thorough monitoring of building plan before approval and institution of effective development control agencies among others should be put in place to ensure proper management of storm water in Ibeju-Lekki local government area of Lagos state.
  • Item
    The Dynamics of Land use and Land Cover Change in Non-Costal Town of Giyani, Limpopo, South Africa
    (Department of Urban and Regional Planning, Benue State University, Makurdi, 2021-03) Jimoh M. Yusuf; Ola, A. B; Raheem, W.M; A.R Suleiman; Raheem, W.A
    Against the background of that land is considered not only as an essential means of production but also as a basis of human existence, its availability and accessibility requires adequate research attention. It is on this conviction that this study seeks to model the patterns, rate as well as identify the consequences of land modification in Giyani town of South Africa over the last 30 years in order to provide informed sustainable land use management policies and programmes. The study used a supervised classification method for geospatial analysis of available LandSat imageries for 1987, 1997, 2007 and 2017 to analyze the changes in land cover in Giyani using available imageries in Bands. ArcGIS 10.3 software and raster calculator tool to produce change detection maps. Land Consumption Rate and Absorption Coefficient were adopted to respectively measure land consumption by each member of the community and change of urban land consumption. The results were overlaid to obtain a visual representation of the area/extent of changes that occurred over time. The result shows that 781.9ha of vegetation was transformed between 1987 and 2017, this was largely informed by the increased demand for firewood and material for construction, construction of infrastructure, government offices e.t.c. Built-up areas increased in its coverage to about 919.44ha within the three decades (1987-2017). Due to the expansion of the town to the hinterland, bare land was consumed by about 627.87ha within the same period with 0.06 LCR in 2017 and LAC between 2007 and 2017. The paper underscored need for vertical growth (smart-city growth concept), and advocated for promoting tree planting among Giyani residents to prevent wanton land modification.
  • Item
    The Practice and Challenges of Biomedical Waste Management: A Study of Selected Medical Facilities in Ile-Ife, Osun State
    (Faculty of Environmental Sciences, University of Ilorin, 2018) Ola, A. B; Bako, A.I; Abdulraheem, M.O; Raheem, W.M; Raheem, W.A; Adewale, Y.Y
    In pursuing their aims of providing treatment and safeguarding the health of the people against illnesses, health-care services inevitably create waste that is hazardous to health and whose management has remained a great challenge due to its highly toxic contents. This paper examines the practice of biomedical waste management in some medical facilities in Ile-Ife with a view to determining the risks associated with the practice. Four medical facilities with some level of sophistication in waste management were purposively selected for study. The type of waste generated was determined by sorting of waste while hand held scale was used to determine the volume of waste generated. Questionnaire was used to obtain information from the waste management and medical staff of the selected medical facilities. Descriptive (frequencies and percentages) and inferential statistics (Multinomial logistic regression) were used in analysing the data. The study established that the daily per capita waste generation in the medical facilities was 0.51kg. Scrap (Syringes and absorbent paper) (96.7%), infectious (Excreta and dressing swabs) (72.9%) and pathological wastes (Human tissue and body fluid) (57.0%)were the most generated waste while open dumping and pit burial of waste were widely practiced among the medical facilities. Exposure to harmful chemical and radioactive waste (68.8%)and injuries from sharps (52.3%)pose serious health risks not only to the waste managers but health care workers. The paper holds that solutions to the challenges of biomedical waste management practices lie in strict adherence to the global best practices as recommended by the World Health Organisation.