Abstract

Field measurements reveal that the shoreline in the muddy Imoluma area of the Western Niger Delta, Nigeria retreated by between 16 and 27 m in the twelve month period from March 1984 to February 1985. Although significant differences were observed in the rates of shoreline retrogradation in the grassland and mangrove forest zones along the coast, the vegetation factor accounts for only between 10 and 29% of the spatial variations in the rates of retreat, while the relief of the undulating coastal plain explains between 50 and 62 % of the variance. The roles of relief and vegetation type and density in controlling rates of shoreline retrogradation in the area are discussed.

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