Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community
Questions: The rapid climate warming in tundra ecosystems can increase nutrient availability in the soil, which may initiate shifts in vegetation composition. The direction in which the vegetation shifts will co-determine whether Arctic warming is mitigated or accelerated, making the understanding o...
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Online Access: | https://research.wur.nl/en/publications/depth-based-differentiation-in-nitrogen-uptake-between-graminoids https://doi.org/10.1111/jvs.12593 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/531531 2024-02-04T09:57:37+01:00 Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community Wang, Peng Limpens, Juul Nauta, Ake van Huissteden, Corine van Rijssel, Sophie Quirina Mommer, Liesje de Kroon, Hans Maximov, Trofim C. Heijmans, Monique M.P.D. 2018 application/pdf https://research.wur.nl/en/publications/depth-based-differentiation-in-nitrogen-uptake-between-graminoids https://doi.org/10.1111/jvs.12593 en eng https://edepot.wur.nl/431478 https://research.wur.nl/en/publications/depth-based-differentiation-in-nitrogen-uptake-between-graminoids doi:10.1111/jvs.12593 info:eu-repo/semantics/openAccess Wageningen University & Research Journal of Vegetation Science 29 (2018) 1 ISSN: 1100-9233 Arctic tundra Dwarf shrubs Graminoids N Niche differentiation Nutrient uptake Plant functional types Rooting depth Soil depth info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2018 ftunivwagenin https://doi.org/10.1111/jvs.12593 2024-01-10T23:17:22Z Questions: The rapid climate warming in tundra ecosystems can increase nutrient availability in the soil, which may initiate shifts in vegetation composition. The direction in which the vegetation shifts will co-determine whether Arctic warming is mitigated or accelerated, making the understanding of successional trajectories urgent. One of the key factors influencing the competitive relationships between plant species is their access to nutrients, depending on the depth where they take up most nutrients. However, nutrient uptake at different soil depths by tundra plant species that differ in rooting depth is unclear. Location: Kytalyk Nature Reserve, northeast Siberia, Russia. Methods: We injected 15N to 5 cm, 15 cm and the thaw front of the soil in a moist tussock tundra. The absorption of 15N by grasses, sedges, deciduous shrubs and evergreen shrubs from the three depths was compared. Results: The results clearly show a vertical differentiation of N uptake by these plant functional types, corresponding to their rooting strategy. Shallow-rooting dwarf shrubs were more capable of absorbing nutrients from the upper soil than from deeper soil. Deep-rooting grasses and sedges were more capable of absorbing nutrients from deeper soil than the dwarf shrubs. The natural 15N abundances in control plants also indicate that graminoids can absorb more nutrients from the deeper soil than dwarf shrubs. Conclusions: Our results show that graminoids and shrubs in the Arctic differ in their N uptake strategies, with graminoids profiting from nutrients released at the thaw front, while shrubs mainly forage in upper soil layers. Our results suggest that tundra vegetation will become graminoid-dominated as permafrost thaw progresses and nutrient availability increases in the deep soil. Article in Journal/Newspaper Arctic permafrost Tundra Siberia Wageningen UR (University & Research Centre): Digital Library Arctic Journal of Vegetation Science 29 1 34 41 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Arctic tundra Dwarf shrubs Graminoids N Niche differentiation Nutrient uptake Plant functional types Rooting depth Soil depth |
spellingShingle |
Arctic tundra Dwarf shrubs Graminoids N Niche differentiation Nutrient uptake Plant functional types Rooting depth Soil depth Wang, Peng Limpens, Juul Nauta, Ake van Huissteden, Corine van Rijssel, Sophie Quirina Mommer, Liesje de Kroon, Hans Maximov, Trofim C. Heijmans, Monique M.P.D. Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
topic_facet |
Arctic tundra Dwarf shrubs Graminoids N Niche differentiation Nutrient uptake Plant functional types Rooting depth Soil depth |
description |
Questions: The rapid climate warming in tundra ecosystems can increase nutrient availability in the soil, which may initiate shifts in vegetation composition. The direction in which the vegetation shifts will co-determine whether Arctic warming is mitigated or accelerated, making the understanding of successional trajectories urgent. One of the key factors influencing the competitive relationships between plant species is their access to nutrients, depending on the depth where they take up most nutrients. However, nutrient uptake at different soil depths by tundra plant species that differ in rooting depth is unclear. Location: Kytalyk Nature Reserve, northeast Siberia, Russia. Methods: We injected 15N to 5 cm, 15 cm and the thaw front of the soil in a moist tussock tundra. The absorption of 15N by grasses, sedges, deciduous shrubs and evergreen shrubs from the three depths was compared. Results: The results clearly show a vertical differentiation of N uptake by these plant functional types, corresponding to their rooting strategy. Shallow-rooting dwarf shrubs were more capable of absorbing nutrients from the upper soil than from deeper soil. Deep-rooting grasses and sedges were more capable of absorbing nutrients from deeper soil than the dwarf shrubs. The natural 15N abundances in control plants also indicate that graminoids can absorb more nutrients from the deeper soil than dwarf shrubs. Conclusions: Our results show that graminoids and shrubs in the Arctic differ in their N uptake strategies, with graminoids profiting from nutrients released at the thaw front, while shrubs mainly forage in upper soil layers. Our results suggest that tundra vegetation will become graminoid-dominated as permafrost thaw progresses and nutrient availability increases in the deep soil. |
format |
Article in Journal/Newspaper |
author |
Wang, Peng Limpens, Juul Nauta, Ake van Huissteden, Corine van Rijssel, Sophie Quirina Mommer, Liesje de Kroon, Hans Maximov, Trofim C. Heijmans, Monique M.P.D. |
author_facet |
Wang, Peng Limpens, Juul Nauta, Ake van Huissteden, Corine van Rijssel, Sophie Quirina Mommer, Liesje de Kroon, Hans Maximov, Trofim C. Heijmans, Monique M.P.D. |
author_sort |
Wang, Peng |
title |
Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
title_short |
Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
title_full |
Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
title_fullStr |
Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
title_full_unstemmed |
Depth-based differentiation in nitrogen uptake between graminoids and shrubs in an Arctic tundra plant community |
title_sort |
depth-based differentiation in nitrogen uptake between graminoids and shrubs in an arctic tundra plant community |
publishDate |
2018 |
url |
https://research.wur.nl/en/publications/depth-based-differentiation-in-nitrogen-uptake-between-graminoids https://doi.org/10.1111/jvs.12593 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Tundra Siberia |
genre_facet |
Arctic permafrost Tundra Siberia |
op_source |
Journal of Vegetation Science 29 (2018) 1 ISSN: 1100-9233 |
op_relation |
https://edepot.wur.nl/431478 https://research.wur.nl/en/publications/depth-based-differentiation-in-nitrogen-uptake-between-graminoids doi:10.1111/jvs.12593 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1111/jvs.12593 |
container_title |
Journal of Vegetation Science |
container_volume |
29 |
container_issue |
1 |
container_start_page |
34 |
op_container_end_page |
41 |
_version_ |
1789961938514477056 |