Experimental addition of nitrogen to a whole forest ecosystem at Gardsjon, Sweden (NITREX): Nitrate leaching during 26 years of treatment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F18%3A00495419" target="_blank" >RIV/86652079:_____/18:00495419 - isvavai.cz</a>

Alternative codes found

RIV/00025798:_____/18:00000282

Result on the web

<a href="http://dx.doi.org/10.1016/j.envpol.2018.06.093" target="_blank" >http://dx.doi.org/10.1016/j.envpol.2018.06.093</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2018.06.093" target="_blank" >10.1016/j.envpol.2018.06.093</a>

Result language

angličtina

Original language name

Experimental addition of nitrogen to a whole forest ecosystem at Gardsjon, Sweden (NITREX): Nitrate leaching during 26 years of treatment

Original language description

Chronic high deposition of nitrogen (N) to forest ecosystems can lead to increased leaching of inorganic N to surface waters, enhancing acidification and eutrophication. For 26 years nitrogen has been added as ammonium nitrate (NH4NO3) at 40 kg N ha(-1) yr(-1) to a whole forested catchment ecosystem at Gardsjon, Sweden, to experimentally simulate the transition from a N-limited to N-rich state. Over the first 10 years of treatment there was an increasing amount of nitrate (NO3-) and to a lesser extent ammonium (NH4+) lost in runoff, but then N leaching stabilised, and for the subsequent 16 years the fraction of N added lost in runoff remained at 9%. NO3- concentrations in runoff were low in the summer during the first years of treatment, but now are high throughout the year. High frequency sampling showed that peaks in NO3- concentrations generally occurred with high discharge, and were enhanced if high discharge coincided with occasions of N addition. Approximately 50% of the added N has gone to the soil. The added N is equivalent to 140 years of ambient N deposition. At current ambient levels of N deposition there thus appears to be no immediate risk of N saturation at this coniferous forest ecosystem, and by inference to other such N-limited forests in Scandinavia. (C) 2018 Elsevier Ltd. All rights reserved.

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Environmental Pollution

ISSN

0269-7491

e-ISSN

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Volume of the periodical

242

Issue of the periodical within the volume

NOV

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

367-374

UT code for WoS article

000446150300040

EID of the result in the Scopus database

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