أطروحة (ماجستير)-جامعة القاهرة، 2022.

ببليوجرافيا: صفحات. 122-130.

تشمل الدراسة على اربع فصول تسبقها مقدمة وتليها خاتمة حيث تناولت المقدمة التعريف بمنطقة الدراسة، واسباب اختيار الموضوع، واهداف وتساؤلات الدراسة، والمناهج التى اتبعت و مصادر البيانات، واخيرا صعوبات الدراسة.

a) The study includes four chapters preceded by an introduction and followed by a conclusion.
The introduction dealt with the definition of the study area, the reasons for choosing the topic, the objectives and questions of the study, the curricula that were followed and data sources, and finally the difficulties of the study.
The first chapter studies the climatic conditions in Tanzania, from which it was found that it has large amounts of solar radiation With the exception of coastal areas, they are the least areas that receive amounts of solar radiation, while the central regions has large quantities, and the western regions come in an average level of these quantities, except for some small regions The study devoted a special case to the study of solar radiation due to its importance in that region, where it was studied the factors affecting it separately because it is an effective and important factor in the cultivation of food crops in Tanzania, which distinguishes one region over another, as shown in a comparative study of Mtwara and Mwanza in terms of the cultivation systems in each of them, which was radiation the solar system plays an active role in this, and then displays the season for each of the temperatures and rains, and to know the directions of each of them effective effect of each on agriculture in Tanzania and the calculation of variance and variance indicators on the annual run and seasonal, and to distinguish the most important areas of annual and seasonal change in both temperatures and precipitation, and by studying pressure systems and winds in Tanzania, it turns out that the country falls under two types of pressure systems in the Indian Ocean and the Atlantic Ocean. Considering that the influence of the Indian Ocean is the most influential in most of the times and that it controls the movement of tropical winds (ITCZ), which is responsible for most of the amounts of rain that fall on Tanzania besides the local winds. In the rainy seasons, there are areas that have two seasons of rainfall and there are places with one season of different times with other regions that also have one rain season, then the chapter presents the most important factors affecting the climate of Tanzania at the district level.
The second chapter focuses on the
crops grown in Tanzania: maize, rice, sorghum, and cassava, in addition to the most important types of vegetables and fruits. These crops, and the study tried toproduction of the most important food

صدر أيضًا كقرص مدمج.

النص بالعربية والملخص بالإنجليزية.