Physicochemistry of the Lysina stream-What can we learn from high-frequency monitoring?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F22%3A00567092" target="_blank" >RIV/86652079:_____/22:00567092 - isvavai.cz</a>

Result on the web

<a href="https://niva.brage.unit.no/niva-xmlui/bitstream/handle/11250/3040311/7783-2022.pdf?sequence=1&isAllowed=y" target="_blank" >https://niva.brage.unit.no/niva-xmlui/bitstream/handle/11250/3040311/7783-2022.pdf?sequence=1&isAllowed=y</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Physicochemistry of the Lysina stream-What can we learn from high-frequency monitoring?

Original language description

During the first half of the 1990s, atmospheric acid deposition was inconpletely neutralized in the drainage waters at Lysina due to low weathering rates. Lysina streamwater thus exhibited low pH and correspondingly extremely high mean concentrations of potentially toxic inorganic monomeric aluminum (0.7 mg/L) in stream water. Concentrations of Ali were usually above the toxic level for benthic macroinvertebrates (above 0.14 or 0.3 mg/L for different species). Moreover, macroinvertebrate biodiversity was very low in the Lysina stream compared to Czech forested sites with higher streamwater pH values. Data from regular monitoring show notable variability relative to seasonal fluctuations in flow conditions, with unstable levels for all parameters. Similarly, to another studied sites the changes in flow conditions at Lysina exert control on the concentration of solutes and parameter dynamics. There is a clear increase in concentrations of dissolved organic carbon (DOC) and proton (H+), as well as increases in conductivity as flow levels increase. However, when compared to high frequency data, it is clearly documented that regular weekly sampling regularly miss important episodic discharge events. This results in misinterpretation of processes and leads to underestimation of the impact of short-term hydrological events. Therefore, having high frequency measurements compliment and substantially aid our assessment of signals that can be missed by regular sampling. The high-frequency data has the potential for improving our calculation of element fluxes, nutrient levels, and their bioavailability in streams, as well as assessment of biogeochemical processes.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

10501 - Hydrology

Project

<a href="/en/project/GC21-22810J" target="_blank" >GC21-22810J: Linking the composition of dissolved organic matter and nutrient cycling in streams of temperate forested catchments</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NIVA Report

ISSN

1894-7948

e-ISSN

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Volume of the periodical

2022

Issue of the periodical within the volume

7783

Country of publishing house

NO - NORWAY

Number of pages

3

Pages from-to

12-15

UT code for WoS article

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EID of the result in the Scopus database

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