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الرئيسية > Water Erosion in Tyre and Bint...>الوصف

Water Erosion in Tyre and Bint Jbeil Districts "Lebanon": Jibal Al-Butum Area as an Example

المصدر: مجلة دراسات جامعية في الآداب والعلوم الإنسانية
الناشر: الجامعة اللبنانية - كلية الآداب والعلوم الإنسانية - مركز الأبحاث والدراسات
المؤلف الرئيسي: Khyami, Ali (Author)
مؤلفين آخرين: Haidar, Ali Talal (Co-Author) , Hassan, Hussein El-Hage (Co-Author)
المجلد/العدد: ع8
محكمة: نعم
الدولة: لبنان
التاريخ الميلادي: 2021
الشهر: سبتمبر
الصفحات: 80 - 104
ISSN: 2707-1863
رقم MD: 1430238
نوع المحتوى: بحوث ومقالات
اللغة: الإنجليزية
قواعد المعلومات: HumanIndex
مواضيع:
التعرية المائية | الأراضي الزراعية | جغرافية الزراعة
كلمات المؤلف المفتاحية:
Bint Jbeil | Erosion Hazard | Geology | GIS | Gully Erosion | Jibal Al-Butum | Map | Qualitative Model Raindrop Erosion | Rainfall Erosivity | Rill Erosion | Rock Infiltration | Sheet Erosion | Soil Erodibility | South Lebanon | Tyre | Water Erosion
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المستخلص: The Southern Lebanon region is one of the most exposed Lebanese areas to water erosion. The problem has not been managed though it threatens soil quality and sustainable agricultural production. Erosion hazard maps are an essential tool for soil and land conservation measures. This study applies a qualitative model for mapping soil water erosion hazards, using GIS, in a semi-humid region, with a scarcity of rainfall data, and an intensive agricultural production. Five basic maps, each with a different number of classes, were first produced. These represent the slope, the rock infiltration, the soil erodibility, the vegetation cover, and the rainfall erosivity. These maps were later summed to obtain an erosion hazard map. The model indicates that a large area (34.4%) is subject to high erosion, especially in tobacco and legume (chickpeas, wheat …) growing areas. Indeed, by the time of heavy rainfall intensity (November to March), the legume has not grown any foliage and the tobacco was not yet planted, leaving the surface exposed. During the validation of the model using fieldwork, raindrops, sheet, rill, and gully erosions were observed. This validation qualitatively indicated that the model used is highly suitable (80%) for mapping soil erosion hazard under Lebanese natural conditions, and therefore useful to recommend protection measures by setting priorities for possible planning interventions.
ISSN: 2707-1863

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