Changing sub-Arctic tundra vegetation upon permafrost degradation: impact on foliar mineral element cycling
Abstract ∼ 500 samples of typical tundra plant species from two contrasting Alaskan tundra sites, i.e., an experimental sedge-dominated site (Carbon in Permafrost Experimental Heating Research, CiPEHR) and natural shrub-dominated site (Gradient). The foliar concentration of these mineral elements was species specific, with sedge leaves having relatively high Si concentration and shrub leaves having relatively high Ca and Mn concentrations. Therefore, changes in the species biomass composition of the Arctic tundra in response to permafrost thaw are expected to be the main factors that dictate changes in elemental composition of foliar stocks and maximum potential foliar fluxes upon litterfall. We observed an increase in the mineral element foliar stocks and potential annual litterfall fluxes, with Si increasing with sedge expansion in wetter sites (CiPEHR), and Ca and Mn increasing with shrub expansion in drier sites (Gradient). Consequently, we expect that sedge and shrub expansion upon permafrost thaw will lead to changes in litter elemental composition and therefore affect nutrient cycling across the sub-Arctic tundra with potential implications for further vegetation succession.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Changing sub-Arctic tundra vegetation upon permafrost degradation: impact on foliar mineral element cycling ; volume:19 ; number:9 ; year:2022 ; pages:2333-2351 ; extent:19
Biogeosciences ; 19, Heft 9 (2022), 2333-2351 (gesamt 19)
- Creator
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Mauclet, Elisabeth
Agnan, Yannick
Hirst, Catherine
Monhonval, Arthur
Pereira, Benoît
Vandeuren, Aubry
Villani, Maëlle
Ledman, Justin
Taylor, Meghan
Jasinski, Briana L.
Schuur, Edward A. G.
Opfergelt, Sophie
- DOI
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10.5194/bg-19-2333-2022
- URN
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urn:nbn:de:101:1-2022051205273670261991
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:37 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Mauclet, Elisabeth
- Agnan, Yannick
- Hirst, Catherine
- Monhonval, Arthur
- Pereira, Benoît
- Vandeuren, Aubry
- Villani, Maëlle
- Ledman, Justin
- Taylor, Meghan
- Jasinski, Briana L.
- Schuur, Edward A. G.
- Opfergelt, Sophie
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Linking tundra vegetation, snow, soil temperature, and permafrost
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Post-fire vegetation succession in the Siberian subarctic tundra over 45 years
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Shrubs and Degraded Permafrost Pave the Way for Tree Establishment in Subarctic Peatlands
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
Distinguishing Rapid and Slow C Cycling Feedbacks to Grazing in Sub-arctic Tundra
Vegetation shadow casts impact remotely sensed reflectance from permafrost thaw ponds in the subarctic forest-tundra zone
Hydrology drives chemical synchronicity in subarctic tundra ponds
Linking tundra vegetation, snow, soil temperature, and permafrost
Fire in lichen-rich subarctic tundra changes carbon and nitrogen cycling between ecosystem compartments but has minor effects on stocks
Bacterial production in subarctic peatland lakes enriched by thawing permafrost
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years
Abrupt increase in Arctic-Subarctic wildfires caused by future permafrost thaw
Low below-ground organic carbon storage in a subarctic Alpine permafrost environment
Shrubs and Degraded Permafrost Pave the Way for Tree Establishment in Subarctic Peatlands
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
Distinguishing Rapid and Slow C Cycling Feedbacks to Grazing in Sub-arctic Tundra
Vegetation shadow casts impact remotely sensed reflectance from permafrost thaw ponds in the subarctic forest-tundra zone
Hydrology drives chemical synchronicity in subarctic tundra ponds
Linking tundra vegetation, snow, soil temperature, and permafrost
Fire in lichen-rich subarctic tundra changes carbon and nitrogen cycling between ecosystem compartments but has minor effects on stocks
Bacterial production in subarctic peatland lakes enriched by thawing permafrost
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years
Abrupt increase in Arctic-Subarctic wildfires caused by future permafrost thaw
Low below-ground organic carbon storage in a subarctic Alpine permafrost environment
Shrubs and Degraded Permafrost Pave the Way for Tree Establishment in Subarctic Peatlands
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition