Effects Climatic Changes on Crops Irrigation in Future for Libya A Case Study of SOFULJEEN Region.
الملخص
This research presents how climate change affects the water demands of SOFULJEEN Region most important food crops: three (wheat, tomato and potato) study examines how climate change may impact future irrigation requirements in SOFULJEEN Region using the SSP2-4.5 and SSP5-8.5 scenarios. for 2020s–2040s-2060s-2080s and 2100s were used to determine the patterns of temperature and rainfall in study area, The CROPWAT 8.0 model was employed to estimate reference evapotranspiration) ETo) and net irrigation water requirement (NIWR) for the key three crops wheat tomato S and potatoes, based on the predicted climate conditions. Five different scenarios for the three crops' future irrigation needs were calculated, compared to the current case (2020), with 2100s by under SSP2-4.5 and SSP5-8.5,The results displayed that the maximum temperatures increase ratio in 2100 will be 9.84% and 18.70% higher than in the current 2020. In SOFULJEEN Region that both short and long-term temperature increases are anticipated to be considerable. As a result, there will be reference evapotranspiration (ETo) increases, According to the SSP2-4.5 and SSP5-8.5 for the 2040-2100.scenarios forecast annual average ETo increases of 0.9 mm/day (13.27%) and 1.59 mm/day (23.45%), respectively. Net irrigation water requirement (NIWR) and growth of irrigation water requirement (GIWR) million m3 (wheat, tomato s and potato) in SOFULJEEN Region were assessed for the current, SSP2-4.5, and SSP5-8.5 scenarios. For SSP5-8.5 the (NIWR) (million m3 )are expected for the 2100s to increase for crops three(wheat, tomato s and potato), 7191.24, 3383.39 and 1702.26 respectively, compared to the current (2020)scenario (6050.94 , 2457.94 and 1287.09 million m3) for three crops Previous.
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