أثر التغيرات المناخية على الموازنة و الاستهلاك المائي للمحاصيل الزراعية بدلتا النيل

الملخص EN

Knowledge of water consumption of agricultural crops is the main pillar of the planning process and successful water management in the agricultural field.

Therefore, many researchers have paid attention to this, and applied many methods to measure the estimation of water consumption of different crops.

In this research, the impact of climate change on the budget and water consumption of agricultural (food) crops such as wheat, rice and maize in the Nile Delta is studied, especially with the marked rise in temperatures and the continuous decrease in the amount of rain during the recent current period, and filling that deficit of irrigation water for the growth of these crops during Its agricultural season, and to know this, this research examined the study of the change in the potential estimate of evaporation - transpiring in the Nile Delta, and then proceeded to study the change in the climate water balance in the Nile Delta, to finally know the extent of the impact of climate change and its relationship to the budget and water consumption from the contribution of rain water to it and the need for water Irrigation.

The results of climate change and the rise in temperature have shown a negative effect in increasing the water requirements for agricultural crops in the Nile Delta, in addition to the fluctuation of the amount of rain from year to year and from one agricultural season to another in the region, For the winter wheat crop, if the temperature rises more, the water consumption of wheat increases By about 2.5%, and for the maize crop, its water consumption will increase by about 8%, while we find that the rice crop will increase its water consumption by about 19% by the middle of this century and under the current weather conditions.

The fluctuation of rain, heat and evaporation.