July 01, 2018
Food scarcity and the loss of agricultural land are issues of global importance. The main goal of this study was to reclaim new development areas in the desert side of the District. To achieve this goal, Landsat 5 TM (1984) and Landsat 8 ETM (2018) were used in this study. A supervised classification technique was conducted to track changes in land use / land cover of the study area. A 1: 50000 topographic maps were also used in this study.
Two field trips were conducted to collect soil samples and information on existing land types. A climatic database of the study area, chemical and physical analysis of 140 soil and water samples from soil layers were used in this study. The characteristics of soils formation were determined for each specific crop at the beginning of the evaluation process. Soil character maps were produced using GIS. These maps were produced using IDW technique from point data that led to continuous soil characteristics maps. Climate requirements Land and soil formations used in the evaluation of the various crops of five annual crops (wheat, barley, safflower, peanuts, watermelon, and three perennial crops: olives, guava and date palm). Actual land suitability was applied using ASLE. And determine the determinants of each crop.
The results of the change detection analysis show an increase in the built-up area of 3688.1 hectares in 2017. Agricultural land was increased from 98,820.2 hectares in 1984 to 2002 hectares by 28,262 hectares due to land reclamation by the government and local farmers. Low salinity values occupied 90% while average salinity values occupied 10% of the total area. The area is sandy to sandy clay. The actual suitability of barley cultivation ranges was moderate suitable to unsuitable. The actual viability of wheat cultivation ranges from medium to unsuitable. The actual suitability of the study area for safflower cultivation is low to inappropriate.
Division : Environmental Studies and Land use
Prof : Prof.Dr. Adel Shalaby