Changes in surface water chemistry caused by natural forest dieback in an unmanaged mountain catchment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895539" target="_blank" >RIV/60076658:12310/17:43895539 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/17:00479714

Result on the web

<a href="https://ac.els-cdn.com/S0048969717301584/1-s2.0-S0048969717301584-main.pdf?_tid=2465af6c-eccf-11e7-a6fd-00000aab0f01&acdnat=1514576187_aae55bea0ba4f0ab14cfab80ac2ec2af" target="_blank" >https://ac.els-cdn.com/S0048969717301584/1-s2.0-S0048969717301584-main.pdf?_tid=2465af6c-eccf-11e7-a6fd-00000aab0f01&acdnat=1514576187_aae55bea0ba4f0ab14cfab80ac2ec2af</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2017.01.148" target="_blank" >10.1016/j.scitotenv.2017.01.148</a>

Result language

angličtina

Original language name

Changes in surface water chemistry caused by natural forest dieback in an unmanaged mountain catchment

Original language description

Ionic and nutrient compositions of throughfall, tributaries and lake outlet were analysed in the Plegne catchment lake system (an unmanaged mountain forest in Central Europe) from 1997 to 2016. The aim was to evaluate changes in surface water chemistry after natural forest dieback. In the 2004-2008, 93% of the Norway spruce trees were killed by bark beetle outbreak, and all dead biomass remained in the catchment. Forest dieback changed the chemistry of all water fluxes, and the magnitude, timing, and duration of these changes differed for individual water constituents. The most pronounced decreases in throughfall concentrations occurred for K+, dissolved organic carbon (DOC), Ca2+ and Mg2+, i.e. elements mostly originating from canopy leaching, while concentrations of NH4+ and soluble reactive phosphorus (SRP) remained almost unaffected. In tributaries, the most rapid changes were increases in NO3-, K+, H+ and ionic aluminium (Al-i) concentrations, while terrestrial export of DOC and P forms started more slowly. Immediately after the forest dieback, increase in NO-3 concentrations was delayed by elevated DOC availability in soils. NO3- became the dominant anion, with maximuni concentrations up to 346 mu eq L-1 within 5-7 years after the bark beetle outbreak, and then started to decrease. Terrestrial exports of All, K+, H+, me, and Ca2+ accompanied NO3- leaching, but their trends differed due to their different sources. Elevated losses of SRP, DOC, and dissolved organic nitrogen continued until the end of the study. In the lake, microbial processes significantly decreased concentrations of NO3-, organic add anions, H+ and Ali(,), and confounded the chemical trends observed in tributaries. Our results suggest that terrestrial losses of elements and the deterioration of waters after forest dieback are less pronounced in unmanaged than managed (clear-cut) catchments.

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

10619 - Biodiversity conservation

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

2017

Confidentiality

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

Name of the periodical

Science of the Total Environment

ISSN

0048-9697

e-ISSN

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Volume of the periodical

584

Issue of the periodical within the volume

APR 15 2017

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

971-981

UT code for WoS article

000399358500094

EID of the result in the Scopus database

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