The research aims to study the impact of the change in rainfall on wheat Productivity
in al-Hasakah station in the Eastern Province. and to achieve the objectives of the research
were to adopt a time series first one from 1991 until 2010,was used a
nd divided by two
equal period stretching from 1991 until 2000, and the second period extends from 2001
until 2010, and so on quarterly and annual level for the amount of rain and the productivity
of wheat, and Study the effect of rainfall in both periods on wheat production.
Because rainfall in the coastal area is high and water projects are nearly missing, we think it is important to make use of available water resources. In order to predict future rainfalls and suggest proper management of resources, we created a mathe
matical model linking rainfall amounts between demand (population, agricultural and industrial) on water resources during the period (2000-2012). Results show the following:
1. Rainfalls decreased during the period ( 2002-2012) at an annual rate of (1.84%).
2. Demand on water resources increased during the period (2002-2012) at an annual rate of (3.41%) of the population demand, and (3.47 %) of the agricultural demand, and 6.25% for industrial demand.
3. There is a surplus of available water resources and the size of demand for them, with the surplus decreasing during the period (2002-2012) at an annual rate (2.97 %).
4. The estimation of the surplus between the amount of available water resources and the size of the demand for them will decrease in 2023 from what it was like in the year 2013 at an annual rate (-3.23%).
