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جيومورفولوجية حوض وادي بنات الحسن == Geomorphology Of Wadi Banat Al - Hassan I Basin
Author name:
زياد فريح مطر عباس الجليباوي
Supervisor name:
مشعل محمود فياض الجميلي
General topic:
Geography
Specific topic:
Geography
Degree:
Master
University:
University of Anbar - College Of Literature - Department Of Geography
Language:
Arabic
University location:
Anbar
First pages:
10T1454 - p.pdf
Abstract:
Banat AL - Hasan basin is one of the dry valleys in the Iraqi west plateau. Its water flows into the Euphrates river during rainfalls.This valley passes through a region with homogeneous rocks and sandy and gypsum soils. The region is often affected by the linear formations that have remarkable effect on valleys. 90 linear phenomena have been characterized in this region. The region isalso famous for low slop; the highest slop found is of 2 degrees.The desert dry climate dominates the region with little plant cover.The quantitative analysis of the properties of the basin net depending on topographic maps of 25000 : 1 scale and the field study as well as the analysis of longitudinal and latitudinal sections of the valleys and the analysis of hypsometric curve have shown that basins in the study area take a form very close to the circular shape. They show, moreover, an increase in the indication of flood risks as a result of the speed at which water waves reach the main stream and because the waterways are short and because of the decrease of the ratio of surface and under evaporation as a result of the short distance of the flow. It has also, been shown that the valley passes through the early stage of maturation as the two processes of erosion and sedimentation are equal, and some of theland formations are still constructing. Banat AL - Hasan valley consists of five river ranks. Land formations in the study area have been built as a result of the effect of flowing water in rainy periods as the recent climate is unable to construct these formations, but only develop them at low rates.Land formations have clear effects on human activities; human settlement is restricted very close to the Euphrates river. The agricultural activity, on the other hand, is restricted inside valleys and at flood plains and at desert oases to the south of the studyarea. Pasturing spreads over all the area of the basin.
