التقدير الكمي لمخاطر العمليات المورفومناخية و أثرها على النشاط البشري في قضاء الرطبة

Abstract EN

The study concerned with analyzing the main geomorphological risks to which Al-Rutba district is located in the far western part of Iraq within Anbar province, and the study area occupies an area of (31966 / km2).

Its natural characteristics have been studied, which have a significant impact on increasing the severity and strength of geomorphological risks within the study area and its continuation.

The study used modern technologies such as remote sensing techniques and the Geographic Information Systems Program (GIS), as well as building a model for the risks to which the study area is exposed, In addition to the field study that was represented by personal interviews with the residents of the region, and documenting the study with pictures of the existing phenomena and their role in the occurrence of geomorphological hazards, the study included morphomagnetic risks represented by weathering processes and the method of their measurement, which showed that the general rate of chemical weathering in the study area reached (0.54) according to the results Corbel equation, erosion processes, their types and methods of measurement, which are represented by rain-erosion, which amounted to the stations of the study area (14, 89) for the Rutba plant, (14, 13) to the Nukhaib station, which are weak according to the Olandos Verne index, and the groove erosion which is graded according to The Bergsma equation (1982) is between the very light erosion range.

The degree of erosion of this range is based on the criterion of perchma (1), and its stripping rate is between (1- 400 / m), and the The area of (31205.6 / km2) is the highest in the area of erosion in the study area by (97.6% ), and the range of light erosion The degree of erosion in this range, according to the Perkzma criterion, reaches (2) degrees, with an erosion rate of (401 - 1000 m), and occupied an area (760.4 / km2) which is the lowest percentage of its predecessor and reaches (2.4% ), and wind erosion, which is very high in the stations of the study area according to the Chepil equation, and finally the study concluded to build a final model The risk of erosion in the study area, which was determined by means of degrees of severity.