Determination of nutrient loads in Mogan watershed through modelling approach

Date

2015-09-12

Author

Özcan, Zeynep
Kentel Erdoğan, Elçin
Alp, Emre

Metadata

Show full item record

Item Usage Stats

199
views

0
downloads

Lake Mogan which is located in Gölbaşı County, 20 km south of Ankara, Turkey is one of the most important wetlands of Turkey and it was declared as a Special Environmental Protection Region in 1990 because of its ecological value. Mogan Watershed which has an area of 970 km2 is dominated by agricultural land use. The ecological integrity in Lake Mogan is under threat due to high level of urbanization, industrial and agricultural activities. In this study, unit diffuse pollution loads resulting from different land use classes in the basin were estimated with Soil and Water Assessment Tool (SWAT) model. The pollution loads estimated by SWAT at the outlets of Yavrucak Creek were used to calculate simulated pollution loads per unit watershed area. In addition, the unit pollution loads for different land use classes were estimated by nonlinear programming. SWAT model outcomes showed that the unit total nitrogen (TN) and total phosphorus (TP) loads (0.46 kg TN/ha/yr and 0.07 kg TP/ha/yr) generated from Mogan watershed are very close to the minimum values of the loads specified in the literature. In addition, the calculated values for agricultural land use (0.59 kg TN/ha/yr and 0.09 kg TP/ha/yr) are consistent with the literature values.

URI

https://hdl.handle.net/11511/77390

Conference Name

17th IWA International Conference on Diffuse Pollution and Eutrophication

Collections

Department of Environmental Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Evaluation of the best management practices to control agricultural diffuse pollution in lake mogan watershed with swat model Özcan, Zeynep; Alp, Emre; Kentel Erdoğan, Elçin; Department of Environmental Engineering (2016) Lake Mogan which is located in Gölbaşı County, Ankara, Turkey is one of the most important wetlands of Turkey and it was declared as Special Environmental Protection Region in 1990. Total area of semi-arid Lake Mogan watershed is 970 km2 and dry farming is practiced approximately in 40% of the basin. Therefore, agricultural diffuse source pollution is a serious concern in the watershed. In the context of this thesis, the effects of implementation of different agricultural best management practices on sedime...
Integrated Watershed Management for Lake Mogan with the focus of Agricultural Diffuse Pollution Özcan, Zeynep; Başkan, O; Düzgün, Hafize Şebnem; Kentel, Elçin; Alp, Emre (2015-09-25) Lake Mogan located 20 km south of Ankara, Turkey has a watershed area of 970 km2, and it is dominated by areas with dry agricultural practices (50%) and graze lands (31%). Intense agricultural activities and fast urbanization rates are the most important factors affecting the water quality in Lake Mogan. There has been several management alternatives suggested to improve the water quality in Lake Mogan. In 2008, the municipality implemented lake augmentation strategy to increase the water level since it dro...
Sustainable management of Mogan and Eymir Lakes in Central Turkey Yagbasan, Ozlem; Yazıcıgil, Hasan (2009-01-01) Mogan and Eymir Lakes, located 20 km south of Ankara in Central Turkey, are important aesthetic, recreational, and ecological resources. Dikilitas and Ikizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km(2). The purpose of this study is to quantify groundwater components in lakes' budgets and to assess the potential impacts of upstream reservoirs on lake levels for sustainable management of the system. Available data have been use...
Modelling and forecasting snowmelt runoff process using the HBV model in the eastern part of Turkey ŞORMAN, ALİ ARDA; ŞENSOY ŞORMAN, AYNUR; Tekeli, A. E.; Sorman, A. Ue.; Akyürek, Sevda Zuhal (Wiley, 2009-03-30) Snowmelt runoff in the mountainous eastern part of Turkey is of great importance as it constitutes 60-70% in volume of the total yearly runoff during spring and early summer months. Therefore, determining the amount and timing of snowmelt runoff especially in the Euphrates basin, where large clams are located, is ail important tusk in order to use the water resources of the country in an optimal manner.
Modeling of mogan and eymir lakes aquifer system Yağbasan, Özlem; Yazıcıgil, Hasan; Department of Geological Engineering (2007) Mogan and Eymir Lakes, located 20 km south of Ankara, are important aesthetic, recreational, and ecological resources. Dikilitaş and İkizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km2. The purpose of this study is (1) to quantify groundwater components in lakes’ budgets, (2) to assess the potential impacts of upstream reservoirs on lake levels, and (3) to determine effects of potential climatic change on lakes and groundwater l...

Citation Formats

Z. Özcan, E. Kentel Erdoğan, and E. Alp, “Determination of nutrient loads in Mogan watershed through modelling approach,” presented at the 17th IWA International Conference on Diffuse Pollution and Eutrophication, Berlin, Germany, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/77390.