كليدواژه :
مخزن سد , شبيه سازي , HEC-5Q , نيتروژن نيتراتي , WASP7 , ارتوفسفات
چكيده لاتين :
During the last decades, world has been faced with shortage of water resources, increase of the population and development of agricultural and industrial activities. Therefore, we should try to find reliable water sources such as new dams. But dam reservoir will change the water quality and river downstream. Thus, the investigation of water quality of dam reservoirs is very important. Doroudzan dam is located in north western part of Shiraz on the Kor River, 70 km far from this city. The dam was first operated in 1351 with a capacity of 993 xlO6 m3 . In this research nitrate and orthophosphate were measured in different depths of Doroudzan dam and simulated using calibrated HEC-5Q and WASP7 models. Then, these models were compared to determine suitable model. The evaluations of these models were showed that simulations of both models were acceptable. In Farvardin, Ordibehesht, Khordad, Tir, Mordad, Shahrivar, Aban, Azar, Dey, and Esfand months, simulation of nitrate with WASP7 model was better than HEC-5Q and in other months, Mehr and Bahman, HEC-5Q was better than WASP7. In general, according to the mean of measured and simulated data in dam reservoir profile, the simulation of WASP7 was better than HEC-5Q. For orthophosphate, the simulation of WASP7 in Ordibehesht, Tir, Mordad, Aban, Azar, Dey and Bahman months was better than HEC-5Q, and in other months, Farvardin, Shahrivar, Mehr, and Esfand, the HEC-5Q simulations was better than WASP7. In general, according to the mean of measured and simulated data, simulations of orthophosphate for WASP7 were better than HEC-5Q. Measured data, were showed that mean concentrations of nitrate and orthophosphate were between 0.33-1.23 mgL"1 and 0-0.14 mgL-1, respectively.
