Open AccessJournal Article
Appraisal and mapping of soil salinity problem in amibara irrigation farms, middle awash basin, ethiopia
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TLDR
In this paper, a study was conducted to appraise the salinity problem of the Amibara irrigation farms in Middle Awash Basin and to generate thematic maps using Arc GIS for further management recommendation.Abstract:
One of the main reason for the loss of productive land in irrigated fields is the buildup of salinity in the soil. In Amibara irrigation Scheme, though no systematic appraisal and mapping has been made before, large tract of land has been abandoned because of salinity problem. Hence a study was conducted to appraise the salinity problem of the Amibara irrigation farms in Middle Awash Basin and to generate thematic maps using Arc GIS for further management recommendation. A total of 249 surface soil samples representing 15,256.22 ha Amibara Irrigation farms were collected and analyzed. Standard methods were followed to measure pH, electrical conductivity (EC) and soluble cations. Arc GIS 9.3 was used to map the overall salinity and sodicity problem of the area. Results showed that around 34 % (5239.79 ha) of the command area has been mapped as saline soil (ECe > 4 dS/m and SAR 4 dS/m, and SAR >13). From the thematic maps generated, it is concluded that proportion of the land taken up by salinity is rapidly increasing. More and more land is fully abandoned due to salinity problem. The water table control by rehabilitating the subsurface drainage system seems to be the only feasible way to improve sustainability of the scheme.read more
Citations
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A review on waterlogging, salinization and drainage in Ethiopian irrigated agriculture
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A review on agricultural problems and their management in Ethiopia.
Bulti Merga,Abdulatif Ahmed +1 more
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Impacts of Surface Water Quality in the Awash River Basin, Ethiopia: A Systematic Review
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Top-soil salinity mapping using geostatistical approach in the agricultural landscape of Timuga irrigation scheme, South Tigray, Ethiopia
TL;DR: In this article, the authors proposed that long-term irrigation activities in arid and semi-arid areas causes soil salinity problem and that knowing soil saliency status is a prerequisite for designing appropriate irrigation management strate...
References
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Book
Salt-Affected Soils and Their Management
TL;DR: The Bulletin form a companion volume to the Soils Bulletin no. 31 'Prognosis of salinity and alkalinity' published in 1976 as mentioned in this paper, which describes and discusses the problems of actual and potential Salinity and sodicity and gives recommendations on how to overcome these.
Book
Soil salinity assessment :methods and interpretation of electrical conductivity measurements
TL;DR: In this paper, the authors present an updated technology for assessing soil salinity based on measurement of electrical conductivity, which has been extensively and successfully field tested, and it is sound, reliable, accurate and suited to a wide variety of useful applications.
Journal Article
Assessment of salinity/Sodicity problems in Abaya State farm, Southern rift valley of Ethiopia.
TL;DR: In this article, a study was conducted to identify the nature and source of salinity in Abaya state farm in southern Ethiopia, where soil and water samples were collected and analyzed.
Effect of Lake Basaka expansion on the sustainability of Matahara SE in the Awash River Basin, Ethiopia
TL;DR: In this article, the extent of expansion of the Lake Basaka in the past 35 years period from Landsat images and its negative effects on the nearby sugarcane plantations' GW dynamics and soil salinity were investigated.
Dissertation
Surface water – groundwater interactions and effects of irrigation on water and soil resources in the awash valley
TL;DR: A Thesis submitted to the School of Graduate Studies of Addis======Ababa University in partial fulfillment of the requirements for the======Degree of Master of Science in Hydrogeology as discussed by the authors.