GIS-Based Analysis of Wetland Conversion and Its SocioEconomic and Environmental Implications in BonnyLocal Government Area, Rivers State, Nigeria
DOI:
https://doi.org/10.14419/4jwztd58Published
27-05-2026Keywords:
Wetland Degradation; Land Use/Land Cover Change; Remote Sensing; Urban Expansion; Bonny LGA; Environmental Impacts, Niger Delta; and GIS AnalysisAbstract
This study examines spatial and temporal changes in wetland extent in Bonny Local Government Area, Rivers State, Nigeria, over 20 years, utilising Landsat satellite imagery from 2005, 2015, and 2025, analysed through remote sensing and GIS techniques. Key findings show an increase in built-up areas from 8,125.7 ha (22.70%) in 2005 to 24,485.2 ha (68.34%) by 2025, while mangroves and vegetation decreased from 12,011.3 ha (33.52%) to 3,625.4 ha (10.10%). Wetlands initially grew but significantly declined to 3,725.6 ha (10.40%) by 2025. Major drivers of these changes include urbanisation, industrial growth, and land reclamation, resulting in ecosystem deterioration, resource depletion, and increased flooding risks. Socioeconomic impacts include job losses and community displacement. The study concludes that poor development strategies threaten wetland ecosystems and recommends integrated land-use planning, enhanced environmental regulations, and wetland conservation for sustainable development.
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