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التواءات مجرى شط العرب : دراسة جغرافية == Meanders of River Shatt Al - Arab A Study Geography
Author name:
سالم جاسم سلمان الجميلي
Supervisor name:
رحيم حميد عبد ثامر العبدان
General topic:
Geography
Specific topic:
Environmental Geography
Degree:
Doctorate
University:
University Of Basrah - College Of Literature - Department Of Geography
Language:
Arabic
University location:
Basrah
First pages:
10T1761 - p.pdf
Abstract:
Rivers meandering is a common feature of rivers , Which take place above the surface of the earth, and vary the intensity of those aliases from one river to another and from place to place depending on the severity of the impact of factors and processes affected by, And the development of these meandering, from the simple bend to twisting and then to a bend The study showed that the torsions of the Shatt al - Arab stream are one of the geomorphological problem formed by many factors , Tectonic, topographic, climatic and hydrological factors are one of the many aspects of the study area , The work of the river consists of three processes (sculpture, erosion and sedimentation) The morphological, morphological, and hydrothermal erosion processes in the study area contributed to this Which resulted in the fluctuation of the amount of annual revenue and monthly discharge and the variation of the speed and direction of the water current and the hydraulic pressure on the banks in the formation (Eleven meanders) Starting from Qurna north to end in FAO and at the mouth of the river in the northern part of the Arabian Gulf, a distance of (190 km), which runs between two showrooms (29,45000 - 310000) The objective of the study is to identify the factors affecting the development and development of the Shatt al - Arab stream and the determination of the geomorphological processes contributing to the formation of the river'smeandering And analysis of morphometric characteristics and to identify the natural and human potential and to determine the risks and use of the study, laboratories of the Faculty of Marine Sciences and Agriculture , As well as the laboratory of the company (B.p) as well as the laboratory of water injection company of the Ministry of Oil Recent programs have been used to address the study, such as the use of geographic information technology (GIS) on maps and satellite imagery , The study also relied on the data of the topographic survey of the depths of the Shatt al - Arab stream and were converted into explanatory and analytical forms. The study shows that tectonic, topographic, soil and hydrological factors The two main processes are water, river, and morphotonic erosion The study showed that there is a variation of the morphometric characteristics of the torsions, and by the classification of the true and perfect lengths of the torsions, according to the length of the course, the zigzag ratios, their symmetry values, their ranges, the trends of their tops, their longitudinal and transverse sections, Rates for the depths of the Qurna up Aliasing or om Alrusas. The study found that the most complex sections of the terrain and the deepest points. It was possible to classify the meandering that passes through the stage of youth and others mature in the geomorphological cycle as the study showed . The most severe erosion of the Shatt al - Arab stream is in the area of Kut Akkab . The study showed that the mostimportant potential offered by rivers meandering is tourism potential. The most negative effect is river meandering , Is the geomorphological change of the river. The stream is still moving towards Iraqi territory and adding its entrances to large areas to the Islamic Republic of Iran . The human factors have a secondary role that is not fundamental to the training process. The study concludes with the conclusions, the list of sources and the summary in English.
