Investigations on Management Solutions for Golesti Reservoir, Considering the Ecological Aspects

Investigations on Management Solutions for Golesti Reservoir, Considering the Ecological Aspects

G.E. Dumitran L.I. Vuta

Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, University “Politehnica” of Bucharest, Romania

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Nowadays many aquatic ecosystems have become more eutrophic, as anthropic pollution causes the acceleration of eutrophication, which is a slow natural process. Therefore, the cultural eutrophication occurs more rapidly and causes problems in the affected water bodies. Since most of the reservoirs have complex use (flood attenuation, generation of hydroelectricity, household and industrial water supply, and irrigation), several models have been already developed to simulate the behavior of eutrophic ecosystems. The objective of this study was to determine the benefits of sustainable exploitation of an eutrophic lake. Therefore, the study aims, first, to analyze the trophic level in the lake, and second, to identify the best scenario of reservoir exploitation, in order to avoid the occurrence of eutrophic phenomenon or to minimize this effects. Also, based on the experimental data and an ecological model, the lake stratification and thermocline variation, correlated with operating conditions, have been studied.The study case is represented by a shallow reservoir in Romania, Golesti, which has 55 million m³ volume and a maximum depth of 32 m. Golesti reservoir allows flood control, hydropower generation, water supply (household and industrial), and irrigation. Values of inflow and outflow from January 2008 to October 2009 were available for the studied reservoir.


reservoir, eutrophication, ecological model, nutrients, water quality


[1] Wetzel, R.G., Limnology: Lake and River Ecosystems, 3rd edn, Academic: London, San Diego, California, 2001.

[2] Dumitran, G.E., Vut¸a˘, L. & Damian, R., Eutrophication modelling of Golesti reservoir in  Romania. Environmental Engineering and Management Journal, 11(2), pp. 1821–1829, 2012. [3] Chapra, S.C., Surface Water – Quality Modeling, McGraw-Hill: New York, 1997.

[4] Dumitran, G.E. & Vut¸a˘, L., Estimation by simulating the net transfer rate into aquatic ecosystems. Proceedings of the 18th European Concurrent Engineering Conference & 8th Future business Technology Concerence, Bucharest, Romania, 18–20 April, pp. 63–65, 2012.

[5] Imberger, J. & Hamblin, P.F., Dynamics of lakes, reservoirs and cooling ponds. Annual Review of Fluid Mechanics, 14, pp. 153–164, 1982. doi: fl .14.010182.001101

[6] Carlson, R.E., A trophic state index for lakes. Limnology and Oceanography, 22, pp. 361–369, 

1977. doi: [7] Mediu/rapoarte (accessed 2012).

[8] Oroian, I. & Odagiu, A., Evolution of water quality in Romania. Studies on Water Management Issues, ed Dr. Muthukrishnavellaisamy Kumarasamy, InTech: Croatia, 2012.

[9] Planning and management of lakes and reservoirs: an integrated approach to eutrophication a training module, UNEP-IETC, UNEP International Environmental Technology Centre, Osaka/ Shiga, 2000.

[10] Slavik, I. & Uhl. W., Analysing water quality changes due to reservoir management and climate change for optimization of drinking water treatment. Water Science & Technology: Water Supply—WSTWS, 9(1), pp. 99–105, 2009.

[11] Khrisanov, N.I. & Osipov, G.K., Reservoir Eutrophication Regulation (Gidrometeoizdat, St. Petersburg), 1993.

[12] Fischer, H., List, E., Koh, R., Imberger, J. & Brooks, N., Mixing in Inland and Coastal Waters, Academic Press Inc: New York, 1979.

[13] Bowie, G.L., Mills, W.B., Porcella, D.B., Campbell, C.L. et al., Rates, constants, and kinetics formulation in surface water quality modeling, EPA 600/3-85/040, 1985.

[14] Addy, K. & Green, L., Dissolved oxygen and temperature. Natural Resources Facts, Fact Sheet No. 96-3, 1997, Fact Sheet No. 96-4.

[15] Nurnberg, G.K., Trophic state of clean and colored, soft- and hardwater lakes with special consideration of nutrients, anoxia, phytoplankton and fi sh. Lake and Reservoir Management, 12, pp. 432–447, 1996. doi: