A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm
The paradigm that permafrost-affected soils show restricted mineral nitrogen (N) cycling in favor of organic N compounds is based on the observation that net N mineralization rates in these cold climates are negligible. However, we find here that this perception is wrong. By synthesizing published d...
Main Authors: | , , , , , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
IOP Publishing
2022
|
Subjects: | |
Online Access: | http://urn.fi/URN:NBN:fi:jyu-202202101480 |
id |
ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/79730 |
---|---|
record_format |
openpolar |
spelling |
ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/79730 2024-05-19T07:36:53+00:00 A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm Ramm, Elisabeth Liu, Chunyan Ambus, Per Butterbach-Bahl, Klaus Hu, Bin Martikainen, Pertti J. Marushchak, Maija E. Mueller, Carsten W Rennenberg, Heinz Schloter, Michael Siljanen, Henri M. P. Voigt, Carolina Werner, Christian Biasi, Christina Dannenmann, Michael 2022 application/pdf fulltext http://urn.fi/URN:NBN:fi:jyu-202202101480 eng eng IOP Publishing Environmental Research Letters 1748-9326 1 17 10.1088/1748-9326/ac417e Ramm, E., Liu, C., Ambus, P., Butterbach-Bahl, K., Hu, B., Martikainen, P. J., Marushchak, M. E., Mueller, C. W., Rennenberg, H., Schloter, M., Siljanen, H. M. P., Voigt, C., Werner, C., Biasi, C., & Dannenmann, M. (2022). A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm. Environmental Research Letters , 17 (1), Article 013004. https://doi.org/10.1088/1748-9326/ac417e CONVID_104193641 URN:NBN:fi:jyu-202202101480 http://urn.fi/URN:NBN:fi:jyu-202202101480 CC BY 4.0 © 2022 The Author(s). Published by IOP Publishing Ltd. openAccess https://creativecommons.org/licenses/by/4.0/ permafrost nitrogen gross N turnover mineralization meta-analysis plant-soil-microbe system global change kasvit ilmastonmuutokset mineralisaatio ikirouta typensidonta typen kierto meta-analyysi mikrobisto arktinen alue kasvillisuus maaperä article http://purl.org/eprint/type/JournalArticle http://purl.org/coar/resource_type/c_dcae04bc publishedVersion A2 2022 ftjyvaeskylaenun 2024-04-23T23:38:28Z The paradigm that permafrost-affected soils show restricted mineral nitrogen (N) cycling in favor of organic N compounds is based on the observation that net N mineralization rates in these cold climates are negligible. However, we find here that this perception is wrong. By synthesizing published data on N cycling in the plant-soil-microbe system of permafrost ecosystems we show that gross ammonification and nitrification rates in active layers were of similar magnitude and showed a similar dependence on soil organic carbon (C) and total N concentrations as observed in temperate and tropical systems. Moreover, high protein depolymerization rates and only marginal effects of C:N stoichiometry on gross N turnover provided little evidence for N limitation. Instead, the rather short period when soils are not frozen is the single main factor limiting N turnover. High gross rates of mineral N cycling are thus facilitated by released protection of organic matter in active layers with nitrification gaining particular importance in N-rich soils, such as organic soils without vegetation. Our finding that permafrost-affected soils show vigorous N cycling activity is confirmed by the rich functional microbial community which can be found both in active and permafrost layers. The high rates of N cycling and soil N availability are supported by biological N fixation, while atmospheric N deposition in the Arctic still is marginal except for fire-affected areas. In line with high soil mineral N production, recent plant physiological research indicates a higher importance of mineral plant N nutrition than previously thought. Our synthesis shows that mineral N production and turnover rates in active layers of permafrost-affected soils do not generally differ from those observed in temperate or tropical soils. We therefore suggest to adjust the permafrost N cycle paradigm, assigning a generally important role to mineral N cycling. This new paradigm suggests larger permafrost N climate feedbacks than assumed previously. ... Article in Journal/Newspaper Arctic Arktinen alue permafrost JYX - Jyväskylä University Digital Archive |
institution |
Open Polar |
collection |
JYX - Jyväskylä University Digital Archive |
op_collection_id |
ftjyvaeskylaenun |
language |
English |
topic |
permafrost nitrogen gross N turnover mineralization meta-analysis plant-soil-microbe system global change kasvit ilmastonmuutokset mineralisaatio ikirouta typensidonta typen kierto meta-analyysi mikrobisto arktinen alue kasvillisuus maaperä |
spellingShingle |
permafrost nitrogen gross N turnover mineralization meta-analysis plant-soil-microbe system global change kasvit ilmastonmuutokset mineralisaatio ikirouta typensidonta typen kierto meta-analyysi mikrobisto arktinen alue kasvillisuus maaperä Ramm, Elisabeth Liu, Chunyan Ambus, Per Butterbach-Bahl, Klaus Hu, Bin Martikainen, Pertti J. Marushchak, Maija E. Mueller, Carsten W Rennenberg, Heinz Schloter, Michael Siljanen, Henri M. P. Voigt, Carolina Werner, Christian Biasi, Christina Dannenmann, Michael A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
topic_facet |
permafrost nitrogen gross N turnover mineralization meta-analysis plant-soil-microbe system global change kasvit ilmastonmuutokset mineralisaatio ikirouta typensidonta typen kierto meta-analyysi mikrobisto arktinen alue kasvillisuus maaperä |
description |
The paradigm that permafrost-affected soils show restricted mineral nitrogen (N) cycling in favor of organic N compounds is based on the observation that net N mineralization rates in these cold climates are negligible. However, we find here that this perception is wrong. By synthesizing published data on N cycling in the plant-soil-microbe system of permafrost ecosystems we show that gross ammonification and nitrification rates in active layers were of similar magnitude and showed a similar dependence on soil organic carbon (C) and total N concentrations as observed in temperate and tropical systems. Moreover, high protein depolymerization rates and only marginal effects of C:N stoichiometry on gross N turnover provided little evidence for N limitation. Instead, the rather short period when soils are not frozen is the single main factor limiting N turnover. High gross rates of mineral N cycling are thus facilitated by released protection of organic matter in active layers with nitrification gaining particular importance in N-rich soils, such as organic soils without vegetation. Our finding that permafrost-affected soils show vigorous N cycling activity is confirmed by the rich functional microbial community which can be found both in active and permafrost layers. The high rates of N cycling and soil N availability are supported by biological N fixation, while atmospheric N deposition in the Arctic still is marginal except for fire-affected areas. In line with high soil mineral N production, recent plant physiological research indicates a higher importance of mineral plant N nutrition than previously thought. Our synthesis shows that mineral N production and turnover rates in active layers of permafrost-affected soils do not generally differ from those observed in temperate or tropical soils. We therefore suggest to adjust the permafrost N cycle paradigm, assigning a generally important role to mineral N cycling. This new paradigm suggests larger permafrost N climate feedbacks than assumed previously. ... |
format |
Article in Journal/Newspaper |
author |
Ramm, Elisabeth Liu, Chunyan Ambus, Per Butterbach-Bahl, Klaus Hu, Bin Martikainen, Pertti J. Marushchak, Maija E. Mueller, Carsten W Rennenberg, Heinz Schloter, Michael Siljanen, Henri M. P. Voigt, Carolina Werner, Christian Biasi, Christina Dannenmann, Michael |
author_facet |
Ramm, Elisabeth Liu, Chunyan Ambus, Per Butterbach-Bahl, Klaus Hu, Bin Martikainen, Pertti J. Marushchak, Maija E. Mueller, Carsten W Rennenberg, Heinz Schloter, Michael Siljanen, Henri M. P. Voigt, Carolina Werner, Christian Biasi, Christina Dannenmann, Michael |
author_sort |
Ramm, Elisabeth |
title |
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
title_short |
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
title_full |
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
title_fullStr |
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
title_full_unstemmed |
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
title_sort |
review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
http://urn.fi/URN:NBN:fi:jyu-202202101480 |
genre |
Arctic Arktinen alue permafrost |
genre_facet |
Arctic Arktinen alue permafrost |
op_relation |
Environmental Research Letters 1748-9326 1 17 10.1088/1748-9326/ac417e Ramm, E., Liu, C., Ambus, P., Butterbach-Bahl, K., Hu, B., Martikainen, P. J., Marushchak, M. E., Mueller, C. W., Rennenberg, H., Schloter, M., Siljanen, H. M. P., Voigt, C., Werner, C., Biasi, C., & Dannenmann, M. (2022). A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm. Environmental Research Letters , 17 (1), Article 013004. https://doi.org/10.1088/1748-9326/ac417e CONVID_104193641 URN:NBN:fi:jyu-202202101480 http://urn.fi/URN:NBN:fi:jyu-202202101480 |
op_rights |
CC BY 4.0 © 2022 The Author(s). Published by IOP Publishing Ltd. openAccess https://creativecommons.org/licenses/by/4.0/ |
_version_ |
1799476033672445952 |