Podrobnosti záznamu

Název
    Kyselé deště stále s námi
Údaj o odpovědnosti
    Jakub Hruška, Pavel Krám, Otakar Schwarz
Další názvy
    Acid rains still with us
    Modelování dlouhodobé acidifikace lesních půd (Variant.)
Autor
    Hruška, Jakub
    Krám, Pavel, 1960-
    Schwarz, Otakar
Jazyk
    česky
Zdrojový dokument - seriál
    Lesnická práce
Svazek/č.
    Č. 6
Strany
    s. 256-259, 288
Rok
    1999
Poznámky
    2 obr.
    Anglické resumé
    il.
    Zkr. název ser.: Lesn. Práce
Předmětová skupina
    acidifikace
    dusík
    elektrárna
    kyselý déšť
    lesní hospodářství
    malé povodí
    model matematický
    oxid siřičitý
    poškození
    predikce
    půdy
    uhlí hnědé
    vegetace
Geografické jméno
    ČR-Čechy
    Lysina (Cheb)
    Slavkovský les
Klíčové slovo
    Deště
    Kyselé
    Stále
Abstrakt (anglicky)
   Considering the information on decreasing sulphur compounds emissions the damage to forests by acid rain would seem gone by. Indeed, the speed of SO2 decrease in huge sources within the territory of the Czech Republic during the second half of the 20th century has no analogy in the world. In 1997 the SO2 emissions dropped by 71% compared 1987 in the CR. By the year 1999 even greater drop is expected, roughly estimated to the value of 10% of the 1998's value. Similar trend can be observed in foreign sources located in the territory of Poland and the former GDR. Nevertheless, this result, brilliant at the first sight, does not ustify extreme optimismus. Long-term surveys of small water basins show the acidification of forest ecosystems, namely of soils, will remain a big problem in the future. How dangerous the future we have brought about may be is presented on the model of soil acidification development in Slavkovský les.
   The acidification is a long-term and cumulative process developing dynamically. Only after a certain period the symptoms of process, which have been taking place, manifest. Therefore it is desirable to deal also with the past of acidified ecosystems. Unless we are able to reconstruct the conditions of an observed ecosystem before the acidification started, at least by the means of a qualified estimate, we will not have any reference point to approach to in the future. For this purpose, mathematical models simulating long process of acidification are applied. As soils represent the major ecosystem component determining its resistance to anthropogenic acidification the models include namely soil processes leading to acidification of soils and waters. MAGIC (Model of Acidification of Groundwater In Catchments), developed in the USA in the middle eighties (Cosby et al., 1985), represents one of the medium complex models and has been applied successfully over the world.
   The advantage of modelling consists in indisputable possibility of qualified estimated of future situation development
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    10. 5. 2007
Datum importu
    8. 8. 2012