Chemical response of a small stream in a forested catchment (central Czech Republic) to a short-term in-stream acidification

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F03%3A00000172" target="_blank" >RIV/00025798:_____/03:00000172 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Chemical response of a small stream in a forested catchment (central Czech Republic) to a short-term in-stream acidification
Original language description
Lesni potok was artificially acidified with HCl for 4 hours to assess the role of stream substrate in acid-neutralization and recovery. The pH was lowered from 4.7 to 3.2. Desorption of Ca and Mg, and desorption or solution of Al dominated acid-neutralization; Al mobilization dominated later. The stream substrate released 4,542 meq Ca, 1,184 meq Mg, and 2,329 meq Al over a 45 m long and 1 m wide stream segment. Smaller amounts of Be, Cd, Fe, and Mn were released. Adsorption of SO42- and esorption of F-occurred during the acidification phase of the experiment. The exchange reactions were rapidly reversible for Ca, Mg, and SO42- but not symmetric as the substrate resorbed 1,083, 790 and 0 meq Ca, Mg, and Al, respectively, in a 4-hour
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
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Project
<a href="/en/project/GA526%2F03%2F0058" target="_blank" >GA526/03/0058: The influence of tree species on long-term forest soil acidification - analysis of present status and prediction of the future</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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