Dissolved and gaseous nitrogen losses in forests controlled by soil nutrient stoichiometry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F21%3A00543408" target="_blank" >RIV/67985831:_____/21:00543408 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/21:43903368 RIV/86652079:_____/21:00543408 RIV/00025798:_____/21:00000115 RIV/67985874:_____/21:00543408

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1748-9326/ac007b" target="_blank" >https://iopscience.iop.org/article/10.1088/1748-9326/ac007b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-9326/ac007b" target="_blank" >10.1088/1748-9326/ac007b</a>

Result language

angličtina

Original language name

Dissolved and gaseous nitrogen losses in forests controlled by soil nutrient stoichiometry

Original language description

Global chronic nitrogen (N) deposition to forests can alleviate ecosystem N limitation, with potentially wide ranging consequences for biodiversity, carbon sequestration, soil and surface water quality, and greenhouse gas emissions. However, the ability to predict these consequences requires improved quantification of hard-to-measure N fluxes, particularly N gas loss and soil N retention. Here we combine a unique set of long-term catchment N budgets in the central Europe with ecosystem N-15 data to reveal fundamental controls over dissolved and gaseous N fluxes in temperate forests. Stream leaching losses of dissolved N corresponded with nutrient stoichiometry of the forest floor, with stream N losses increasing as ecosystems progress towards phosphorus limitation, while soil N storage increased with oxalate extractable iron and aluminium content. Our estimates of soil gaseous losses based on N-15 stocks averaged 2.5 +/- 2.2 kg N ha(-1) yr(-1) and comprised 20% +/- 14% of total N deposition. Gaseous N losses increased with forest floor N:P ratio and with dissolved N losses. Our relationship between gaseous and dissolved N losses was also able to explain previous N-15-based N loss rates measured in tropical and subtropical catchments, suggesting a generalisable response driven by nitrate (NO3 (-)) abundance and in which the relative importance of dissolved N over gaseous N losses tended to increase with increasing NO3 (-) export. Applying this relationship globally, we extrapolated current gaseous N loss flux from forests to be 8.9 Tg N yr(-1), which represent 39% of current N deposition to forests worldwide.

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

10501 - Hydrology

Project

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

Continuities

—

Publication year

2021

Confidentiality

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

Name of the periodical

Environmental Research Letters

ISSN

1748-9326

e-ISSN

1748-9326

Volume of the periodical

16

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

064025

UT code for WoS article

000655341900001

EID of the result in the Scopus database

2-s2.0-85107763814