Water-quality genesis in a mountain catchment affected by acidification and forestry practices

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00496088" target="_blank" >RIV/60077344:_____/19:00496088 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/19:00327868

Result on the web

<a href="https://www.journals.uchicago.edu/doi/10.1086/698533" target="_blank" >https://www.journals.uchicago.edu/doi/10.1086/698533</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1086/698533" target="_blank" >10.1086/698533</a>

Result language

angličtina

Original language name

Water-quality genesis in a mountain catchment affected by acidification and forestry practices

Original language description

Effects of changes in air pollution and forest cover on the acid atmospheric deposition and runoff were studied in the Jizerka experimental catchment (Czech Republic), a sensitive mountain environment of low buffering capacity. From 1982 to 2015, resident scientists and volunteers measured water quality of precipitation, fog, and stream samples at the watershed level. Archived LANDSAT imagery was used to reconstruct changes in forest composition in the watershed based on a detailed ground inventory done in 2010 to 2012. Spatial interpolation was used to approximate atmospheric deposition of water and SO42-, NO3-, and NH4+ over the watershed area. The open-field load of S peaked in 1987 to 1988 and dropped substantially in the 1990s, but inorganic N did not show a significant trend. The N : S deposition ratio increased from 0.37 to 2.83. Mean annual stream-water pH increased from 4.2 to 5.9, and concentrations of SO42- and NO3- decreased by 55 and 53%, respectively. Seasonal acidification of stream water was observed during snowmelt (March, April) and episodic summer rainstorms. The relatively rapid response of stream-water quality to reduced deposition corresponded with subsurface runoff generated in a shallow podzolic soil. Relatively high leaching of NO3- in the 1980s followed limited N uptake in damaged spruce stands and clear-cut areas. Recovery of stream-water chemistry followed the drop in the acid atmospheric deposition by similar to 5 y, and stream biota revived after 10 to 15 y. Removal of spruce forest and reduced air pollution caused faster recovery from acidification than expected from pure air-quality improvement. Reduced atmospheric deposition and fog-drip interactions caused by lower canopy area suggest that modified forestry practices can affect deposition rates and stream-water quality. Deciduous or mixed forests could decrease the acidic atmospheric load by reducing leaf area and surface roughness.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/LTC17006" target="_blank" >LTC17006: Ecosystem services of mountain forests in catchments of drinking water reservoirs affected by the acid atmospheric deposition and climate change.</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Freshwater Science

ISSN

2161-9549

e-ISSN

—

Volume of the periodical

38

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

257-269

UT code for WoS article

000474076400004

EID of the result in the Scopus database

2-s2.0-85048696826