Počet záznamů: 1  

Analysis of Coniferous Forest Damage: Effects of Trichloroacetic Acid, Sulphur, Fluorine and Chlorine on Needle Loss of Norway Spruce

  1. 1.
    0024243 - UEB-Q 2006 RIV CZ eng J - Článek v odborném periodiku
    Coufal, D. - Matucha, Miroslav - Uhlířová, H. - Lomský, B. - Forczek, Sándor
    Analysis of Coniferous Forest Damage: Effects of Trichloroacetic Acid, Sulphur, Fluorine and Chlorine on Needle Loss of Norway Spruce.
    [Analysis of Coniferous Forest Damage: Effects of Trichloroacetic Acid, Sulphur, Fluorine and Chlorine on Needle Loss of Norway Spruce.]
    Neural Network World. Roč. 13, - (2003), s. 89-102. ISSN 1210-0552
    Grant CEP: GA ČR GA522/02/0874
    Výzkumný záměr: CEZ:AV0Z5038910
    Klíčová slova: Forest decline * polyfactorial problem * dose/response relationship
    Kód oboru RIV: EF - Botanika

    Trichloroacetic acid (TCA), a secondary air pollutant (SAP) and a product of photooxidation of volatile chlorinated C2-hydrocarbons has phytotoxic properties and negatively influences on the state of forest health in general. The present knowledge shows the uptake of TCA by the spruce from the atmosphere by precipitation over soil, roots, and transpiration stream up into needles, where it affects the photosynthetic apparatus of the plant. To judge the role of TCA in forest ecosystems its effects along with other stressors must be followed. Those include, above all, emmissions of sulphur oxides and fluoride from burning energetic coal. From monitoring the selected stressors – the content of total sulphur, fluorine and chlorine besides TCA – in spruce needles on selected spruce stands, a positive correlation between the needle loss (as a measure of the spruce forest damage) and the content of S, F, and TCA was found. In this way the negative effect of TCA was confirmed.

    Analysis of Coniferous Forest Damage: Effects of Trichloroacetic Acid, Sulphur, Fluorine and Chlorine on Needle Loss of Norway Spruce.
    Trvalý link: http://hdl.handle.net/11104/0003167