The Study Area astronomically extends between latitudes °30     ʹ10 and °30   ʹ36 N, and longitudes °32   ʹ15 and °32     ʹ35 E. The area of ​​the region is about 1482 km2. The study seeks to identify the emergence and development of longitudinal dunes, and to examine the extent of their impact on various human uses, specifically the SCLR agricultural lands. In addition, it develops solutions to overcome the hazards of the consequence that the region suffers. The study also attempts to provide solutions that maintain the ecological balance.
    This section focuses on the contributions of the study. It is divided into seven parts: (a) geographical distribution of the longitudinal dunes, (b) morphometric characteristics of the longitudinal dunes, (c) movement of the longitudinal dunes, (d) factors affecting the longitudinal dunes movement,(e) Planted Reins (f) hazards of longitudinal dunes movement on agricultural development, and (g) protection from the environmental hazards related to the longitudinal dunes movement. Each part fathoms out a particular aspect of the research in terms of the data, the procedures of analysis, and the results. As elaborated below, significant elements of each part, if any, are introduced and thoroughly explained.