Investigation of Groundwater Resource Quality Change on Agriculture and Technology (Case study:The Plain of Neyshabour)

Since99% of thefreshwaterresourcesofintensegroundwater, thesearenecessaryto understandandoptimize utilizationof theirties.Onthisbasisbecause ofthe importance ofwaterresources, thequalityofgroundwaterinthe plain ofNishaburduring1381to1387was evaluated.The resultsshow thatNa,Cl, and sulfate, respectively, the highestratesareamong thecationsandanions andwater qualitygraduallydecreases.PercentageofC4S4classthathas theworstqualityalsoincreases. It should be notedthatmost of thegroundwaterhas a highsaltplainsNishaburand oftenhavehighsalinity class. The results showed that the salinity of water aqueduct is higher than wells water and sprinkler system cannot be used in most cases due to leaf blight.Alsominimum and maximum sedimentation base on Puchorius scale Indexhave been done in 2002and 2007 year respectively. There is the dominant sedimentation in aquiferNeyshabur. As it that shows the Puchorius index is more accurate than Langlier and Raisener.