Tree dieback and related changes in nitrogen dynamics modify the concentrations and proportions of cations on soil sorption complex

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899099" target="_blank" >RIV/60076658:12310/19:43899099 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/19:00504987

Result on the web

<a href="https://reader.elsevier.com/reader/sd/pii/S1470160X18308045?token=3AAFE782383EB225344CB12483619824BE8C03EC81BDFBA1BB24E2700F57AC162A06E8FE127CE77DB2F09B3833A85127" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S1470160X18308045?token=3AAFE782383EB225344CB12483619824BE8C03EC81BDFBA1BB24E2700F57AC162A06E8FE127CE77DB2F09B3833A85127</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ecolind.2018.10.032" target="_blank" >10.1016/j.ecolind.2018.10.032</a>

Result language

angličtina

Original language name

Tree dieback and related changes in nitrogen dynamics modify the concentrations and proportions of cations on soil sorption complex

Original language description

The soil sorption complex in an unmanaged mountain forest (Plane Lake catchment, Czech Republic) changed substantially during the decade following forest dieback in 2004-2008, when a bark beetle outbreak killed &gt; 90% of mature Norway spruce stands. All downfallen biomass remained in the catchment. Leaching of Ca2+, Mg2+, K+, H+ and ionic Al from the catchment increased after tree dieback and was predominantly coupled with nitrate export. However, the proportions and amounts of individual cations retained on the soil sorption complex and their contribution to leaching differed in time. The average concentration of exchangeable nonacidic cations (base cations and NH4+) doubled from 119 to 247 mu eq g(-1) in the upper similar to 20 cm of soil because their release from dead biomass exceeded losses via leaching and tree uptake. The surplus of non-acidic cations replaced almost 50% of the exchangeable acidity (Al3+ and H+), which was leached out from the soil sorption complex to receiving waters. It was mainly exchangeable Ca2+ that drove the increase of soil base saturation and the decrease of exchangeable acidity. Its concentration continually rose, as well as its contribution to the nonacidic cations (up to 85%). Besides, exchangeable NH4+ played an important role in the first 4 years following dieback, when its proportion increased to similar to 10-20%. K+ only significantly contributed in the first two years. Consequently, tree dieback substantially increased soil base saturation with cations released from dead biomass and thus accelerated soil recovery from long-term acidification. Described changes in soil chemistry represent natural conditions and the uppermost limit of an ecosystem response to all possible management practices based on biomass removal in similar mountain forest areas.

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

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Name of the periodical

Ecological Indicators

ISSN

1470-160X

e-ISSN

—

Volume of the periodical

97

Issue of the periodical within the volume

FEB 2019

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

319-328

UT code for WoS article

000464891000033

EID of the result in the Scopus database

2-s2.0-85055083763