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تحليل جغرافي لظاهرة التصحر في قضاء علي الغربي - محافظة ميسان == Geographical Analysis Of Desertification In Ali Al Gharbi District - Maysan Governorate
Author name:
نقاء سلمان جاسم الربيعي
Supervisor name:
عبد الله سالم عبد الله المالكي
General topic:
Geography
Specific topic:
Geography
Degree:
Master
University:
University Of Basrah - College Of Literature - Department Of Geography
Language:
Arabic
University location:
Basrah
First pages:
10T1431 - p.pdf
Abstract:
اختصت هذه الدراسة بظاهرة التصحر في قضاء علي الغربي الذي يشغل القسم الشمالي والشمالي الغربي من محافظة ميسان بمساحة تبلغ 3596,85كم2 وتشكل نسبة 22,4% من اجمالي مساحة المحافظة البالغة(16072كم2). وقد اسهمت مجموعة من العوامل الجغرافية الطبيعية والبشرية في نشوء | This study has dealt with desertification in Ali al - Gharbis district which Occupies the northern and western north parts of Maysan Governorate, It stretches over an area around 3596.85 km2. It also amounts to about 22.4% of the total of the governorate.A group of natural geographical and human factors have contributed to The rise and increase of desertification in the district, they are represented of dry & hot Climate , Chemical and physical features of the soil , and the quality of surface and subterranean water along with the low of natural plant.In addition there is a misuse of natural resources which include soil , water and wild plants. All these factors have resulted in the rise of high Salinity , wind erosion , sand dunes and dust in the atmosphere , which are geographically distributed in the district.The key feature in the study area is shown in the salinity of the soil and the spread of sand dunes. These features however have exercised their impacts ecologically and economically. The most prominent of these are the contraction of cultivation on arable lands and the decline in productivity of the soil.Moreover superiority is given to the salinity - enduring plants and the rise in production and reclamation of lands can also be traced. The study also shown the danger incurred by desertification in the district, the areas that are exposed to sever and very sever desertification are2903 km2 which represent 80.7% of the total area. Efforts are there for needed to help curtail the negative impacts of desertification. The best possible ways to lessen the negative influences of desertification include land reclamation and the adoption of reassemblemethods in agriculture and the development of natural pastures and the fortification of sand dunes through temporary and durable methods
