Browsing by Author "Adugna, Dejene"

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    Impact of Urban Sprawl on Farmlands: the case of Sebeta Town, Central Ethiopia
    (Addis Ababa University, 2016-06) Adugna, Dejene; Gurmessa, Fekadu (PhD)
    Urbanization ensued urban sprawl that is an avoidable phenomenon which ultimately converts the agricultural land into built environment Urban Sprawl negatively impacts the farmers’ livelihood as well as agricultural production and consumption of the surrounding area. Thus, the objective of this study is to investigate the level and impact of urban sprawl on the farmlands of Sebeta town.GIS and remote sensing were used to analyze the phenomena of agricultural land transformation into urban land use. The change detection method has been applied to investigateLULCC.In order to achieve these, satellite data of Land sat TM for 1986, ETM for 2000 and 2016 have been obtained and processed using ERDAS Imagine. The Maximum Likelihood Algorithm of Supervised Classification has been used to generate land use and land cover maps. For the accuracy of classified Land Use/Land Cover maps, a confusion matrix was used to derive overall accuracy and results were above the minimum and acceptable threshold level. The satellite image results show that urban land increased by 224.1ha (1.5%) and 3851.0ha (25.2%) respectively in the first, the second and the entire study periods. Rural settlement increased in the first period and remained stagnant in the second period. Grassland was the most converted cover type during the entire study period .In the30years, croplands expanded by over 57.9%of the original forest cover of what existed at the base year. The impact of this LULC change is more significant on the socioeconomic condition and status of the study area. The findings showed loss of farmland and displacement of the households who had been involved in farming. In general, high rate of urban expansion (3627 ha/1618.4%) over the last thirty years led to the loss of large agricultural land. The major corrective measures could be improvements on the spatial planning which could balance the land demand of urban areas and shrinking of agricultural land in and in the fringes of Sebeta town. Key words: urban sprawl, displacement, farming community, periphery peri-urban, rural –urban, urban interface, urban -fringe