Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient
Abstract Nitrogen (N) deposition has been increasing in alpine ecosystems, but its fate in soils and plants remains unclear. We assumed that the increased N load will be efficiently retained in alpine ecosystems but that the degree of N use efficiency changes with elevation. Thus, we performed a 3‐y...
Published in: | Journal of Plant Nutrition and Soil Science |
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Online Access: | http://dx.doi.org/10.1002/jpln.201500008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjpln.201500008 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jpln.201500008 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jpln.201500008 |
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crwiley:10.1002/jpln.201500008 2024-06-02T08:02:23+00:00 Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient Ackermann, Simone Amelung, Wulf Löffler, Jörg 2015 http://dx.doi.org/10.1002/jpln.201500008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjpln.201500008 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jpln.201500008 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jpln.201500008 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Plant Nutrition and Soil Science volume 178, issue 6, page 861-867 ISSN 1436-8730 1522-2624 journal-article 2015 crwiley https://doi.org/10.1002/jpln.201500008 2024-05-03T11:59:17Z Abstract Nitrogen (N) deposition has been increasing in alpine ecosystems, but its fate in soils and plants remains unclear. We assumed that the increased N load will be efficiently retained in alpine ecosystems but that the degree of N use efficiency changes with elevation. Thus, we performed a 3‐year 15 N tracer experiment, in which we added 1 g m −2 of either NH 4 15 NO 3 or 15 NH 4 NO 3 fertilizer to a plot of 1 m 2 in size at three elevations. Composite soil samples and aboveground plant material from lichens, dwarf shrubs, and graminoids were collected annually for three years and analyzed for their 15 N accrual. We found a cumulative and plateauing rise in 15 N concentration in soils and plants at all sites. However, overall recovery of the tracer decreased with time, amounting to 71% of fertilizer recovered in the soils in the first year, 69% recovered in soils and plants in the second year, and 37% in soils and plants in the third year. Moreover, the fertilizer use efficiency varied among fertilizer types and plant functional types. This utilization pattern appears to be modulated by elevation. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Journal of Plant Nutrition and Soil Science 178 6 861 867 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Nitrogen (N) deposition has been increasing in alpine ecosystems, but its fate in soils and plants remains unclear. We assumed that the increased N load will be efficiently retained in alpine ecosystems but that the degree of N use efficiency changes with elevation. Thus, we performed a 3‐year 15 N tracer experiment, in which we added 1 g m −2 of either NH 4 15 NO 3 or 15 NH 4 NO 3 fertilizer to a plot of 1 m 2 in size at three elevations. Composite soil samples and aboveground plant material from lichens, dwarf shrubs, and graminoids were collected annually for three years and analyzed for their 15 N accrual. We found a cumulative and plateauing rise in 15 N concentration in soils and plants at all sites. However, overall recovery of the tracer decreased with time, amounting to 71% of fertilizer recovered in the soils in the first year, 69% recovered in soils and plants in the second year, and 37% in soils and plants in the third year. Moreover, the fertilizer use efficiency varied among fertilizer types and plant functional types. This utilization pattern appears to be modulated by elevation. |
format |
Article in Journal/Newspaper |
author |
Ackermann, Simone Amelung, Wulf Löffler, Jörg |
spellingShingle |
Ackermann, Simone Amelung, Wulf Löffler, Jörg Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
author_facet |
Ackermann, Simone Amelung, Wulf Löffler, Jörg |
author_sort |
Ackermann, Simone |
title |
Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
title_short |
Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
title_full |
Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
title_fullStr |
Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
title_full_unstemmed |
Additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 NO$ _3^ - $ and 15 NH$ _4^+ $ fertilization along an elevation gradient |
title_sort |
additional nitrogen in arctic‐alpine soils and plants—a pilot study with 15 no$ _3^ - $ and 15 nh$ _4^+ $ fertilization along an elevation gradient |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/jpln.201500008 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjpln.201500008 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jpln.201500008 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jpln.201500008 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Plant Nutrition and Soil Science volume 178, issue 6, page 861-867 ISSN 1436-8730 1522-2624 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jpln.201500008 |
container_title |
Journal of Plant Nutrition and Soil Science |
container_volume |
178 |
container_issue |
6 |
container_start_page |
861 |
op_container_end_page |
867 |
_version_ |
1800746883019177984 |