University of Khartoum

Assesment and mapping of soil salinity and sodicicty, using soil techniqes, remote sensing and GIS; case study: Althamamid sector, Gezira and Managil Scheme, Sudan

Assesment and mapping of soil salinity and sodicicty, using soil techniqes, remote sensing and GIS; case study: Althamamid sector, Gezira and Managil Scheme, Sudan

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Title: Assesment and mapping of soil salinity and sodicicty, using soil techniqes, remote sensing and GIS; case study: Althamamid sector, Gezira and Managil Scheme, Sudan
Author: A.M.H, Elhag; Hamid, Amna A.; Ganawa, Eltaib S.; Ibrahim, Ibrahim S.; M.S., Dafalla
Abstract: This study focused on the assessment of land degradation in El Tahameid Sector, Gezira State, Sudan. Through mapping and monitoring the changes that occurred in the soil properties, due to drought and mismanagement. The study attempted also to update some information in the study area such as chemical properties using different methods of data transformation and analysis such as: Soil analysis technique, GIS and remote sensing techniques. The research was based on the data and information deduced and extracted from soil survey data, soil analysis, and remote sensed data, in addition to fieldwork verification and other sources. The study covered an area about 706.8 km². Soil analysis indicated that soil degradation have taken place in the study area specially the top northern and southern parts of the area which were affected by salinity, while some soil in the north-eastern and southwestern parts were affected by sodicity. The study showed that there was a hardpan at subsurface layer (30-50 cm) that impedes the water infiltration and crop growth since tilling is done only in the top soil to the depth of 20 cm. Evaluation of soil properties and wind erosion hazard (sand encroachment) revealed that 95.5% of the total area was suitable with respect to crops within the study area.
URI: http://khartoumspace.uofk.edu/123456789/27836


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