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Nitrogen deposition in forests: Statistical modeling of total deposition from throughfall loads
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2022 (English)In: Frontiers in Forests and Global Change, E-ISSN 2624-893X, Vol. 5Article in journal (Refereed) Published
Abstract [en]

Introduction: Nitrogen (N) gradient studies in some cases use N deposition inthroughfall as measure of N deposition to forests.

For evaluating critical loadsof N, however, information on total N deposition is required, i.e., the sum ofestimates of dry, wet and occult deposition.Methods: The present paper collects a number of studies in Europe wherethroughfall and total N deposition were compared in different forest types

.From this dataset a function was derived which allows to estimate total Ndeposition from throughfall N deposition.Results: At low throughfall N deposition values, the proportion of canopyuptake is high and thus the underestimation of total deposition by throughfallN needs to be corrected.

At throughfall N deposition values > 20 kg Nha􀀀1 yr􀀀1 canopy uptake is getting less important.Conclusion: This work shows that throughfall clearly underestimates totaldeposition of nitrogen. With the present data set covering large parts of Europe it is possible to derive a critical load estimate from gradient studiesusing throughfall data.

Place, publisher, year, edition, pages
IVL Svenska Miljöinstitutet, 2022. Vol. 5
Keywords [en]
total nitrogen deposition, throughfall, critical loads of nitrogen, canopy uptake, dry deposition of nitrogen, forests
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Other Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:ivl:diva-4137DOI: 10.3389/ffgc.2022.1062223OAI: oai:DiVA.org:ivl-4137DiVA, id: diva2:1727382
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Available from: 2023-01-16 Created: 2023-01-16 Last updated: 2023-01-19

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Karlsson, Per ErikKarlsson, Gunilla Pihl
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  • apa
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