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231225s2002 xx |||||o 00| ||eng c |
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|a 10.1046/j.1469-8137.2002.00518.x
|2 doi
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|a eng
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|a Aldous, Allison R
|e verfasserin
|4 aut
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|a Nitrogen translocation in Sphagnum mosses
|b effects of atmospheric nitrogen deposition
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|c 2002
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 20.04.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a • Here, the hypothesis was tested that nitrogen (N) translocation from older to younger parts of Sphagnum decreases as N inputs from atmospheric deposition increase. • Nitrogen translocation in Sphagnum mosses was compared in bogs with contrasting atmospheric N deposition (Adirondack - relatively high N deposition; Maine - relatively low) and by following the movement of a 15 NH4 15 NO3 tracer applied to plots of Sphagnum capillifolium over 2 yr. • Annual N translocation ranged from 11% to > 80% in the lower and higher influx sites, respectively. Nitrogen translocation was an important process for the N budget of the Sphagnum mosses, contributing 0.5-11% of the annual N requirements. These results suggest that N translocation is as important as direct N retention from atmospheric deposition for the N budget of the mosses. Contrary to expectations, N translocation was greater in the high (Adirondack) than in the low (Maine) deposition sites. • If N translocation is closely tied to water availability, the relative positions of the water tables in the sites over the course of the experiments might account for differences in N translocation among sites. The lower translocation (Maine) sites had lower water tables in the first year of the experiment and experienced a more severe drought in the second year than did the Adirondack sites
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|a Journal Article
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|a Sphagnum mosses
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|a atmospheric N deposition
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|a bog
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|a nitrogen
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|a nitrogen-use efficiency
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|a peatlands
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|a stable isotope 15N tracer
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| 650 |
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|a translocation
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|i Enthalten in
|t The New phytologist
|d 1979
|g 156(2002), 2 vom: 20. Nov., Seite 241-253
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|x 1469-8137
|7 nnns
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| 773 |
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|g volume:156
|g year:2002
|g number:2
|g day:20
|g month:11
|g pages:241-253
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|u http://dx.doi.org/10.1046/j.1469-8137.2002.00518.x
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