Przepływ jonów przez ekosystemy borów świerkowych i sosnowych w różnych warunkach skażenia środowiska
Flow of ions through ecosystems of spruce and pine forests under different conditions of environmental contamination
Autorzy
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Tyszka J. Tyszka
Instytut Badawczy Leśnictwa
Samodzielna Pracownia Gospodarki Wodnej
ul. Bitwy Warszawskiej 1920 Roku nr 3, 00-970 Warszawa
e-mail: j.tyszka@ibles.waw.pl - Teresa Wawrzoniak Instytut Badawczy Leśnictwa Zakład Siedliskoznawstwa, ul. Bitwy Warszawskiej 1920 Roku nr 3, 00-973 Warszawa
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Magdalena Janek
Instytut Badawczy Leśnictwa, Zakład Ekologii Lasu, Sękocin Stary, ul. Braci Leśnej 3, 05-090 Raszyn
Tel. +48 22 7150524, e-mail: M.Janek@ibles.waw.pl
Abstrakt
Two year research results of chemical contents of water circulating within pine and spruce forest ecosystems are presented. Different phases of water cycle — open field precipitation, throughfall and tree stem flow and also soil water under roots, ground water and output from basin, were included. The main reason of destabilization of cycle of ions in ecosystem might be many times higher comparing to the background SO4 inputs, which effect is decreasing water acidity in precipitation in the Sudety Mts. to pH<4.7; and in the soil to pH 3.81–4.255.
Above phenomenon is accompanied with washing out under stand canopy big amount of H, K, Mn, SO4 and Na ions and also beyond ecosystem SO4, Al and NO3 ions. In the condition of low contamination the main water components being mobiled in the ecosystem are Ca and Mg ions. neutralising influence of „acid rains”.
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