Harran Ovası’nın yeraltısuyu potansiyelinin coğrafi bilgi sistemi ile modellenmesi

Human beings have exploited and misused nature and natural resources from past to present day continuously. These exploitation and misuse have continued today speedy. Today, water and land have been left out of using or production due to wrongunconscious use. Which are extremely important natural resources for humanity, this situation threatens sustainable agricultural opportunities. Water and land resources need to be used in the most accurate and rational way in order for sustainable agriculture. The fertile agricultural soils in our country, or in other words, the soils of the plain, salted in significant quantities due to false-unconscious irrigation these salted soils have become barren over time and have remained out of agricultural production. Due to wrong-unconscious irrigation and inadequate drainage in Turkey such as Menderes, Cukurova and Konya plaıns have caused significant salinization. In recent years, the most typical example for the salinization of the land of the plain is Harran plain., Harran plaın is one of the most important and largest plains in the scope of the project besides being the first plain opened for irrigation under GAP. Harran has a very old agricultural past, significant productions have been realized until today. Civilizations living in this plaın carried the waters of the Euphrates to the oven constantly and they carried out important agricultural production here. Despite the fact that there are important plains in many parts of Turkey, the main theme of the study is only the formation of the Harran focused on this plain. General information regarding the general geological, meteorological, natural resources, and natural water resources belonging to the upper Harran -Şanlıurfa plain have been used for this study. The logs of the water wells located within the boundaries of the city center of Şanlıurfa belonging to the public institutions and individuals were also examined. Static water level, dynamic water level, and well yield values were classified and thematic maps were issued by modeling the data obtained from the wells using by GIS programs. Hydrogeological assessment was made with the help of these thematic maps. With the purpose of being able to control in the future the groundwater level at the mentioned plain, a database includes the thematic maps was created. As well-known creating the risk maps and modeling the water potential have an insurance feature to be optimally used water resources. So, it hopes that this work will be an easy guide for the next studies. It is thought that taking the groundwater potential of the industrial zones as well as the new residential areas into consideration will be more helpful for the researchers to perform further detailed studies. . This study showed that, in most of the basins the pump efficiency is 4-12 liters / sec. On the other hand, the Static Water level appears to be between 30 and 60 meters, while a large part of the Dynamic Water Level appears between 50 and 100 meters. Finally; accordingly, the central and southern parts of the basin are "good" in terms of groundwater potential. While there is very little locally very good ground potential in the north, part of the northwestern part of the Basin and eastern and western parts are generally "medium". On the other side, it appears to be "weak", especially in the north-west, Körkuyu, Kocak, Somak districts and in the west of Basin.