التمثيل الخرائطي لخصائص السطح كعامل مؤثر في تشكيل ظاهرة التصحر لمحافظة واسط باستخدام الاستشعار عن بعد و نظم المعلومات الجغرافية

الملخص EN

Geographical factors contributed directly or indirectly to the emergence and exacerbation of the problem of desertification in the area of present study through the fragility of its natural resources such as climate, surface, soil, water and natural plants.

Surface maps are one of the most important natural maps controlling the manifestations of desertification.

Interpretation and emergence of desertification in the given area.

The surface in that area has its own characteristics, each property has an impact or role in the emergence of the phenomenon of desertification and its multiple manifestations, the surface and the absence of natural obstacles.

In addition, surface erosion is one of the conditions for formation of sand dunes.

In addition, surface erosion has helped in poor drainage, collected excess water on the surface, and then evaporated leaving the salts, which contributes to the increase of salinity of the soil, while increasing the slope of the surface helps to create water erosion, leading to erosion of soil, especially in the area ofmountain shoots.