Modeling The Effects Of Diffuse Nitrogen Sources On A Small Stream
Using QUAL2EU
Author(s)
S. Göncü & E. Albek
Abstract
Modeling the effects of diffuse nitrogen sources
on a small stream using QUAL2EU
S. Goncii & E. Albek
Department of Environmental Engineering,
Anadolu University, Turkey.
Abstract
In this study, a regulated stream draining the Seydi Suyu watershed where
intensive agriculture is practiced has been modeled with respect to nitrogen.
Nitrogen is added to the stream from diffuse sources due to agricultural activities
in the watershed. The magnitude of diffuse sources has been determined by using
export coefficients. In the stream, the nitrogen cycle has been modeled by using
the QUALZEU model. For a period of two years, monthly samples have been
taken from two monitoring stations along the stream. Data obtained from the first
station have been used as model input and data from the second station have
been used to calibrate the model. Observations and model results have been
found to agree well. Moreover, sensitivity analysis has been applied to model
inputs and parameters.
1 Introduction
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