تطبيق معامل (NDSI) الدليل الطيفي غير الخضري في رصد ومراقبة ظاهرة التملح في قضاء العلم بالاعتماد على البيانات الطيفية للقمر (LANDSAT 8)
الشريط الجانبي للمقالة
محتوى المقالة الرئيسي
الملخص
تعد مشكلة الملوحة من المشكلات الرئيسية التي تواجه الترب في قضاء العلم بوصفها تقع ضمن المنطقة الجافة. ومنطقة السهل الرسوبي قليل الانحدار، يتناول البحث دور العوامل الجغرافية الطبيعية والبشرية وبيان أثرها في انتشار مشكلة الملوحة في منطقة الدراسة، وأثرها في الاراضي الزراعية، ومن خلال الدراسة تبين ان منطقة الدراسة تعاني تملحا شديدا في اجزاء عديدة وبشكل خاص الاجزاء الشمالية والشمالية الشرقية وبشكل خط موازي منها ويعود سبب ذلك الى ارتفاع درجة الحرارة وزيادة نسبة التبخر وقلة انحدار السطح فضال عن دور العوامل البشرية والمتمثلة بسوء ادارة الانسان للأرض والمياه وأثر ذلك في تقلص المساحات الصالحة للزراعة وانخفاض معدل انتاجية الدونم.
المقاييس
تفاصيل المقالة
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