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Introductory speech of the organiser
Pokorný, Jan
The conference Třeboňsko 2000, with its sub-title The ecology and economy of the Třeboň Region is the third of such conferences - following two ones, held in 1978 and 1988, respectively. The present conference has continued in the fine tradition of good communication between all the subject areas thet are inevitably involved in, and/or influenced by, the conservation and development of the Třeboň Basin Protected Landscape Area and Biosphere Reserve.
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Zhodnocení dlouhodobého vývoje chemismu vody Stropnice v úseku Údolí u Nových Hradů - Petříkov
Čeřovská, Kateřina ; Pokorný, Jan
Evaluation of long term development of chemical parameters of Stropnice river. In: Pithart,D.: Ecology of alluvial oxbows Natural floodplain (c. 800 ha) of Stropnice river near town Nové Hrady was drained and converted into agricultural land in 1980s. The natural meandring stream was straightened and deepened about 2m under the soil surface level. A high profile of flood plain soil was exposed to mineralisation and water flow from the region was accelerated. Data on water chemistry and flow rates collected before and after the drainage were evaluated. Alkalinity, conductivity, concentrations of base cations have increased after drainage which supports hypothesis that drainage accelerates matter losses from the landscape.
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