The Effects Of Artificial And Natural Fertilizers Used For Tea Cultivation On The Physicochemical Water Quality Of Aquatic Ecosystem In The Firtina Valley (Çamlihemşin-Rize)

Abstract

In this study, the physicochemical water quality changes in Behice village’s stream which is in the south of Çamlıhemşin district in the city ofRize and one of the tributary of Fırtına River due to using chemical fertilizer in the region were researched within February 2011 and June 2011 (before and duringfertilization). This research was carried out along the joint forestry, forestry-agricultural and totally agricultural land of Behice, Çayırdüzü and Dikkaya Villagesof Çamlıhemşin, to obtain of the effect of the use of fertilizers around agricultural land on surface water of the stream via researching the physicochemical waterquality findings such as nitrite, nitrate, ammonium and phosphate ions as well as basic water quality parameters from 8 different chosen stations on the river profiles,which are under the effect of forestry land without any fertilizers, tea land with fertilizers and some mixed land (of tea and forest). According to the findings of thestudy, the use of fertilizers in the region is significant in terms of their effects on the water quality of surface water resources. However, it is understood that thesedifferences are not statistically significant in terms of time and use of land compared to other factors except ammonia nitrogen. Water quality concentrationsmeasured in the study are 1st class (very clean) according to Water Quality Standards of Water Pollution and Control Regulation of Turkey and they are only 2ndclass (polluted a little) in terms of nitrite.