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2978215
أسباب ظاهرة التصحر
Description
للتصحر عده اسباب وظواهر
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@nouraalheshan
@wara_tj94
@anwari94
Mind Map by
n.r.h-q8
, updated more than 1 year ago
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Created by
n.r.h-q8
almost 9 years ago
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Resource summary
أسباب ظاهرة التصحر
الأسباب البشرية :
الرعي الجائر
الإفراط في الزراعة
إزالة الغابات
أسباب طبيعية
قلة الأمطار
هبوب العواصف الترابية
سوء استغلال مياه الري في الزراعه
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