Ecological Hydrology and Water Ecosystem Management
Dubnyak Sergiy
PhD (Geogr.), Associate ProfessorProtasov Oleksandr
D.Sc. (Biol.), Professor, Leading ResearcherEmployees of the Department:
- Dubnyak S. - Head of the department, PhD (Geogr.), Associate Professor
- Protasov O. - D.Sc. (Biol.), Professor, Leading Researcher
- Sylaieva A. - PhD (Biol.), Senior Researcher
- Guleikova L. - PhD (Biol.), Senior Researcher, Scientific secretary of the department
- Vandyuk N. - PhD (Geogr.), Junior researcher
- Samoylenko N. - Junior researcher
- Morozovska I. - PhD (Biol.), Junior researcher
- Batog S. - PhD (Geogr.), Junior researcher
- Bagnyuk L. - Leading engineer
- Ivanova N. - Leading engineer
- Novosolova T. - Leading engineer
- Menshova T. - Engineer of the 1 category
The photograph of ecological hydrology group’s of department
The photograph of technical hydrobiology group’s of department
Fundamental research:
• researching of hydrodynamic and hydrophysical conditions of the continental natural water bodies ecosystems functioning and determination of mechanisms of their influence on biological productivity of water bodies and quality of water environment;
• developing of methodology and methodological base of water ecosystem management by artificial regulation of their hydrological regime;
• studying of structurally-functional features of the organization of technoecosystems as one of the new types of anthropodependent ecosystems in the modern biosphere.
Applied research:
• developing of methods and means for improvement of ecosystems state of the cascade plain reservoirs by means of ecological optimization of hydropower objects operation regime;
• elaborating of ecological requirements for the large reservoirs exploitation rules;
• developing of recommendations for improvement of ecological state of the urban water bodies in Ukraine;
• development of principles and methodology of hydrobiological monitoring of technoecosystems water bodies as one of the system important elements of optimization of their functioning with the aim of minimizing the influence of the technoecosystems on the environment and the reduction of biological hindrances in the functioning of technical systems, increase their operating reliability.
The present hydrological conditions of cascade reservoirs ecosystems functioning are assessed. It was established that climate change significantly influenced on water availability and water regime of the rivers in Ukraine. The period of water exchange in the Dnieper reservoirs has decreased by about 7% compared with the 80th years of the last century. The external water exchange in the shallow water areas of the reservoirs is more active than in the zones of only flow currents action. The water temperature has increased by 1,2-1,5? during the period of reservoirs existence. Especially rapid growth of heat storage is noted here since the late 80's of the last century. The homothermia is most of the year in the reservoirs. Warming has reduced the duration of ice phenomena. The thickness of the ice has decreased by 10 cm. Almost 90% of suspended matter is accumulated in the beds of reservoirs. The rate of silt accumulation is decreased.
Within the framework of the search for conceptual approaches to the development of methods for managing the state of water technoecosystems the most adequate integral indicators of this state are determined. These are the contents and dynamics of organic matter and oxygen dissolved in water, heat content, concentration of suspended substances in water, etc. The means (models) for determining the accepted indicators are recommended.
Models for calculating the elements of the hydrological regime of reservoirs at different runoffs of the HPS and HPSP are improved.
Complex study of cooling ponds, other water bodies of technoecosystems of thermal and nuclear power plants, that started in 1962, are continued, conceptual provisions of general and technical hydrobiology are developed. Based on the experience of many years of research, the concept of the technoecological system was formulated. A fundamentally new is that technogenic and natural biotopes are considered to be equivalent, and their population - as the one cenotic system.
Investigation of cooling systems and technical water supply systems of the NPP were the basis for the development of the Company Standard 0.03.088-2010 «Procedure of the development of reglament of a hydrobiological monitoring of cooling pond, cooling systems and technical water supply systems of the NPP with reactors of type WWER» for NNEC « Energoatom». The basic principles of hydrobiological monitoring of power plants technoecosystems, goals and tasks of monitoring, the basic requirements and recommendations for its conduct were described in the document .
The series of hydrobiological studies in the course of a unique project for decommissioning of the Chornobyl NPP cooling pond and its descent were done. The important data about the process of technogenic succession of the ecosystem in communities of benthos and periphyton invertebrates were received.
Study of the dynamics of zooperifiton on experimental substrates and determination of the untifouling properties of special coverings were done.
On the basis of the technical hydrobiology group of the IHB of NASU, it was created and constantly replenished the database of hydrobiological data WaCo (Water Communities) of all Ukrainian NPP cooling ponds and many TPPs, as well as many technodependent water bodies.
Preparation of apparatuses to field ecohydrology observations.
Hydrophysical observations on the Lake Mins’ke (Kyiv).
Water sampling on the Sasyk Reservoir.
Bathymetric survey of the Berkovshchyna Bay (Kyiv).
Ecohydrologists on the Lake Vyrlytsya (Kyiv).
The plenary report of V.M. Timchenko at a conference in the Uman State Pedagogical University.
The seminar on the problems of the biosphere structure at the Institute of Zoology of the NAS, reporter O.O. Protasov.
The hydrobiology researches on the Lake Svyate, National park “Male Polissya”.
The dried coastal zone of the cooling pond of the Chernobyl Nuclear Power Plant (in the foreground drained settlements are Dreissena).
Water sampling on the cooling pond Chernobyl NPP.
The group of periphyton (Porifera) on the river Gnily Rig – the region of the cooling pond of Khmelnitsky Nuclear Power Plant.
The congregation molluscs (Unionidae) on the river Gnily Rig.
Lake Redchine (Kyiv).
Kiev Reservoir.
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