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Eutrophication trends in the Vltava catchment area, Czech Republic
Hejzlar, Josef ; Vyhnálek, V. ; Kopáček, Jiří ; Procházková, Lidmila ; Komárková, Jaroslava
Long-term trends in phosphorus and phytoplankton concentrations were studied in Slapy Reserv.,as a representative of most reservoirs with medium flushing rate in the Czech Rep. Phosphorus and chlorophyll a concentrations increased from the 1950s to the middle 1990s as a consequence of an increase of phosphorus use and release into surface waters by human population. The decrease in phosphorus and chlorophyll a concentrations during the last decade can be interpreted as a beginning of a long-term recovery of Slapy Reservoir resulting from the decrease in P-loading into the surface waters by human population. Further possibility how to reduce phosphorus input to the surface waters is especially P removal from municipal waste waters. After higher reduction of phosphorus from waste waters, accomplishable especially by the entire elimination of P from detergents and by technologies of enhanced P removal in waste water treatment facilities,the trophic status of Slapy Reserv. lower than in the 1950s can be expected.
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Třeboňsko 2000. Ekologie a ekonomika Třeboňska po dvaceti letech
Pokorný, Jan ; Šulcová, J. ; Hátle, M. ; Hlásek, J.
Konference Třeboňsko 200 navazuje na předešlé dvě konference z let 1978 a 1988 Navazuje na tradici dobré komunikace mezi všemi subjekty, jichž se dotýkají otázky ochrany a rozvoje Chráněné krajinné oblasti a Biosférické rezervace Třeboňsko. Referáty přednesené na konferenci přinášejí analýzu stavu a vývoje třeboňské krajiny a poskytují podklad pro formulování směrů a strategie trvalé udržitelnosti rozvoje Třeboňska.
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