Abstract
In this study, an assessment of the meteorological changes of natural and artificial water resources due to elevation to sea level, which is determined as one of the factors affecting water quality, is made in GIS environment. The comparison of physical and chemical water quality values of Gaga Lake Wetland with 68 m altitude and Çambaşı Pond with 1732 m altitude in Ordu province and the effects of altitude difference between two study points on water quality of these ecosystems were spatially analyzed. In order to better understand the effects of surface water quality in the lakes, the results obtained from the 3 seasons measurement studies were compared with the distribution maps. With all data analysis results, assessment of environmental quality standarts was made by considering the meteorological, ecological and sociological differences between of the regions where both water ecosystems are located and it was found that some physico-chemical parameters were negatively affected due to the intense seasonal transitions. In the last part of the study, results of differences in land use, trophic changes caused by proximity to point and diffuse pollutant sources are discussed. And also some suggestions have been developed for the sustainable management, protection and more efficient use of these water resources by taking into consideration the classification criteria within the framework of the Regulation on Surface Water Quality.