The rapid increase in both urban and rural populations in Rivers State has led to the problem of inadequate availability of urban facilities and social services thus giving rise to social disparity and unequal access to these basic facilities and services by people of the same population spectrum. Empirical research has shown that the problems of social disparity (inequality) particularly in urban areas are on the increase and is gaining global and local attention. Despite the efforts of successive governments in the study area to combat this social problem, it is still raising its head in form of unequal access to educational facilities, health care, urban housing, good roads, and emergency services. This study, therefore, spatially assessed urban facilities and services in Port Harcourt metropolis, Nigeria. The mixed research method was adopted. However, the sampling size for the study comprises of 160 users of these urban facilities/services and staff of the facilities who were also interviewed. Data for the study were analyzed using descriptive statistical tools while Chi-square (X2) method of analysis was used to validate the research hypothesis. The result of the study revealed that accessibility to urban facilities and services is contingent on the level of income of residents in Port Harcourt Metropolis. The result further showed that the accessibility level to urban facilities and services varies across the sampled urban neighbourhoods. Arising from the above, the researchers recommended the deliberate formulation and implementation of policies targeted at eliminating the increasing inequality in access to urban facilities and services in Port Harcourt metropolis and the urgent need to increase the number of basic socio-economic, health, educational and recreational facilities/services to serve the increasing population in the metropolis.
The Niger Delta region has witnessed environmental pollution arising from oil activities over the years of oil exploration and production. Soil fertility in both the Lowland Forest Ecological Zone and Island Forest Ecological Zone were investigated to establish the consequences of oil pollution on the soil and remedial actions to restore back quality and fertility of the soil. A suitable cost effective and environmentally friendly technology to handle the pollutions in the Niger Delta region can be found in Remediation by Enhanced Natural Attenuation Process (ENAP) which facilitates the activities of microorganisms to biodegrade the hydrocarbon impacted soil. The study compared the bio-physicochemical parameters of the oil spill polluted soil with particular reference to areas of oil production of the two Ecological Systems with those of the unaffected soil as well as their response to bioremediation interventions using ENAP. The results demonstrated significant decrease in the values of the key indicator parameter, the Total Petroleum Hydrocarbons (TPH). But for the unenhanced process, the result showed low level of reduction of TPH values for the polluted soils. A degradation trend was demonstrated with time leading to significant TPH reductions and improved key soil fertility indices. The result showed that the level of the nutrient status of soil in the region can be improved through the natural attenuation process.
Flooding is becoming a yearly reoccurring event in many communities and cities in Nigeria, leading to the destruction of properties and deaths; hence, we must take measures to either prepare for the impact or curb the occurrence. The study identified flood vulnerability levels of communities in Isoko North LGA based on physical environmental domains such as land use, elevation, and proximity to river channel (drainage) using geospatial techniques. Also, attributes that could contribute to the resilience capacity building of the communities were assessed. From the study, 73.93% of the entire area is moderately and highly vulnerable to flood, while among the communities, seventeen ( 17) are categorized as moderately vulnerable, and four (4) are lowly vulnerable. The overall resilience capacity of the communities indicated can build a substantial capacity towards community resilience (3.02, 0.06). However, there is a need to encourage collaboration with stakeholders to improve mitigation action and enhance various shortcomings toward resilience capacity building.
Urban wetlands make cities livable in many important ways. They reduce flooding, replenish drinking water, filter waste, provide urban green spaces, and are a source of livelihoods in most urban areas. This study aims to geo-spatially analyze urban wetland loss in Obio/Akpor Local Government Area (LGA), Rivers State, Nigeria. The study analyses land use /land cover changes (LULC) using Landsat7 UTM images of 2000, 2009 and 2018. The satellite images covering the area were acquired and analyzed using ArcGIS10.6. A total area of 25,773.39 sq km was delineated in the study area. After processing the imagery, five LULC classes where developed in ArcGIS environment, such as wetland, built-up area, vegetation, water bodies and bare surface. The study shows that the urban land-use of Obio-Akpor LGA had changed dramatically during the period of 18 years. In 2000, wetlands occupied the second-lowest classes with 9.12% (2352.15 sq.km) of the total classes due to high level of urban development in the area while built-up areas occupied the third-highest classes with 17.62% (4543.83 sq.km) of the total classes. In 2009, the study revealed that the built-up area (urban land use) rose to 19.3% (4975.11 sq.km) and maintained an increase in urban growth due to changes from constructions of many roads and houses while wetlands also surprisingly experienced an increase and occupied the third-highest classes with 19.17% (4942.26 sq.km). Evidence from the study show that 2018 witnessed an expansion in terms of developmental activities in all facets as the built-up area increased in three-fold size within the year, bare surface reduced to a class of 15.47% (4057.29 sq.km) forcing developers to develop towards the wetland ecosystem. The wetlands, therefore, experienced a sharp decline to 4.91% (1266.75 sq.km) due to rapid conversion of wetlands for housing development and excessive urban sprawl and its associated problems of inefficient use of land, urban space and the development of shanty towns/slums. The study concluded that there is a need for the wise use of wetland resources and improvement of institutional arrangement so that wetland policies can be fully integrated into the planning process across all disciplines.
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