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Environmental Characteristics of Reservoir Systems in the Czech Republic

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Final technical rept.

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The sustainable use of reservoirs needs to be based on the concept of watershed level management. This requires complex information on natural conditions, land use, sources of pollution, and socio-economic conditions within the watershed area and on the physical, chemical and biological structure of the reservoir ecosystem. The aims of this work were to i collect data sets from watershed-reservoir systems in the Czech Republic that can serve this purpose and ii indicate the major factors influencing reservoir- and stream-water quality. A geographic information system ArchView3.1 has been used to organize watershed data on terrain morphology, river network, standing waters, land cover, land management, soil characteristics, hydrogeology, water management, point sources of pollution discharges to water courses, and monitoring stations of meteorology, stream hydrology, and water chemistry. Additional attribute data for more detailed descriptions of selected watershed characteristics and for long-term data records have been collected in the spreadsheet format. Data from three watershed-reservoir systems have been collected the Zelivka, Rimov, and Lipno. All of them represent systems with the main reservoir at their lowest parts. Their watershed areas are 1178, 489, and 948 square kilometers and the values of mean water residence time 475, 90, and 270 days, respectively. The reservoirs are of storage type and serve multiple purposes, e.g. raw water withdrawal for drinking water treatment, flow augmentation, and flood protection all three of them, hydropower Lipno, Rimov, and recreation Lipno. Their water quality and their structure of aquatic ecosystem are largely influenced by municipal wastewater discharges into the tributaries or directly into the water body Lipno, agricultural use of the catchment Zelivka, Rimov, and the system of pool operation surface level fluctuation and depth of outlets.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering
  • Water Pollution and Control

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