Urbanization and forest degradation in east Africa - a case study around Dar es Salaam, Tanzania

In this paper we examine the impact of the growing urbanization of Dar es Salaam, Tanzania, on the forest areas around the city. Since 1990 the city has seen an annual population growth rate of over 4%. We document the expansion of the city over the last 30 using the Global Human Settlement Layers, derived from the global Landsat archive. At the same time we show the depletion, of the surrounding forests that has occurred to meet the growing demand for agricultural land, fuel wood and construction material over the same period. The impact on these forests as a result of the demand from an expanding urban conglomeration is higher than would be expected from a dispersed population increase. The results show that to satisfy the demands of the city and of its expanding suburbs, forests from further afield are being depleted and that protected areas nearer the city are being compromised.