Water quality trend analysis in Eymir Lake, Ankara

Date

2011-01-01

Author

YENİLMEZ, Firdes
KESKİN, Fatih
Aksoy, Ayşegül

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In this study, trends in selected water quality parameters in Eymir Lake over a period of 10 years are analyzed using the Mann-Kendall test. Analyzed water quality parameters are dissolved oxygen (DO), total phosphorus (TP), total suspended solids (TSS), and secchi depth (SD). In addition, trends in the yearly averages of precipitation, lake volume, and ambient temperature are examined. According to Mann-Kendall test results, precipitation, volume and ambient temperature values exhibit decreasing trends in 1998-2008. DO and TSS exhibit increasing trends while TP and SD have decreasing trends in Eymir lake. The change in the volume of the lake has a significant impact on the trends of DO, TSS, and SD. These results indicate that, besides eutrophic conditions, water balance and drought conditions significantly impact the water quality of Eymir Lake.

Subject Keywords

Lake Eymir, Trend analysis, Water quality, Mann-Kendall test

URI

https://hdl.handle.net/11511/40548

Journal

PHYSICS AND CHEMISTRY OF THE EARTH

DOI

https://doi.org/10.1016/j.pce.2010.05.005

Collections

Department of Environmental Engineering, Article

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Citation Formats

F. YENİLMEZ, F. KESKİN, and A. Aksoy, “Water quality trend analysis in Eymir Lake, Ankara,” PHYSICS AND CHEMISTRY OF THE EARTH, pp. 135–140, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40548.