Ground water is one of the important sources of drinking water and agriculture in the northern regions of the country. Considering the increasing trend of population growth and demand for agricultural products, especially rice in the northern regions of the country, the rate of utilization of groundwater resources has risen in the past decade. Therefore, assessment of groundwater pollution in Nkarod watershed is of great importance. The purpose of this study was to eva‎luate the aquifer vulnerability in the watershed of Nekarood , and the main objective is to identify the area with high risk and select the most suitable model from the two models of DRASTIC and SINTACS.These two models require the data of seven parameters (depth, net nutrition, aquifer environment, soil, topography, impenetrable zone and hydrologic conductivity) to eva‎luate the groundwater potential, each of which takes a certain weight. Then merging the layers overlay in the GIS environment and eventually obtaining a risk map in the region. The amount of changes in water quality parameters was plotted with Kriging statistical ground method and the changes of elements in the region were shown. To achieve the desired result, the correlation between the final DRASTIC and SINTACS and the changes of nitrate, pH and EC were also used. The correlation between the true model with nitrate, pH and EC was 0.610, 0.254 and 0.227, respectively. For pH and EC, the correlation was negatively correlated with the resultant reversal of nitrate. But since nitrate is one of the contributing factors to water resources, this substance has been chosen as the main factor. Finally, the correlation of each of the parameters with the materials and parameters stated was that the correct model was more appropriate than the Synthesis method for assessing the potential for pollution.

10/9/2018 12:00:00 AM

609

ESE44

سيده عالمه صباغ