The Relationship Between Urban Land Use Intensity and Urban River Quality; The Case Study of Bulbula River
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Date
2024-05-01
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Addis Ababa University
Abstract
Land use is one feature of an urbanization that can have a big impact on the quality of the surface water. Many urban rivers have been replaced by built-up areas as a result of urbanization and other human endeavors. As a result, the structure and storage capacity deteriorate and the river's density and water surface area decrease. The quantity and quality of fresh water have rapidly decreased in recent years as a result of unsustainable urban land use. Rivers and water reservoirs may be impacted by pollution from both point and non-point sources. The study evaluated the land usage within the Bulbula River watershed and the associated inflow of waste into the river. River pollution is caused by pollutants that push into the river stream from both point and non-point sources. Various
laboratory analyses were carried out to evaluate the degree of pollution present in the Bulbula River basin. Three sample locations were used for the dry and wet seasons. However, the study found that, when looking at different land use types, the intensity of the land that is being used has higher contribution for the pollution of urban rivers and renovations to river banks could reduce the amount of pollutants that can enter the river through various channels. Due to the massive amount of debris disposed into the Bulbula River, construction areas, gasoline stations, garages, medical facilities, and congested settlements, the water analysis for the Bullbula River indicated that the stream is significantly contaminated by NO3, PO4, N, and TSS.
Key words: - Bulbula River, Urbanization, Land use intensity, River pollution, water Quality