Environmental Costs of Land Reclamation: Implications for Biodiversity and Conservation Strategies

Land reclamation, the transformation of wetlands, coastal zones, and other natural ecosystems into usable land, has emerged as a global response to urbanization, economic expansion, and agricultural demand. While reclamation provides critical space for infrastructure, industrial growth, and urban development, it simultaneously generates significant ecological costs. This study examines the impacts of land reclamation on biodiversity and ecosystem services, with particular emphasis on the Philippine context and comparative international experiences. Drawing on secondary literature, case studies, and environmental impact assessments, the study identifies reclamation’s adverse effects on species diversity, habitat integrity, water quality, and ecosystem resilience. Findings from Manila Bay, BASECO Compound, and Shanghai’s large-scale projects illustrate the trade-offs between economic growth and ecological sustainability. Although reclamation projects create opportunities for urban expansion and flood protection, they exacerbate biodiversity loss, alter hydrodynamics, and displace vulnerable communities. The research underscores the urgent need for sustainable strategies, including habitat restoration, biodiversity corridors, the use of innovative engineering techniques, and strengthened governance mechanisms. Policy recommendations highlight the importance of integrating conservation into reclamation planning, improving environmental impact assessment frameworks, and promoting community participation in decision-making. By situating reclamation within global discourses on sustainable development, the study contributes to designing balanced approaches that harmonize human progress with ecological preservation.