Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition
Snow cover is a key component in Arctic ecosystems and will likely be affected by changes in winter precipitation. Increased snow depth and consequent later snowmelt leads to greater microbial mineralization in winter, improving soil and vegetation nutrient status. We studied areas with naturally di...
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Online Access: | https://hdl.handle.net/10037/27733 https://doi.org/10.1139/as-2020-0025 |
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ftunivtroemsoe:oai:munin.uit.no:10037/27733 2023-05-15T13:05:43+02:00 Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition Moriana Armendariz, Mikel Nilsen, Lennart Cooper, Elisabeth J. 2022-02-16 https://hdl.handle.net/10037/27733 https://doi.org/10.1139/as-2020-0025 eng eng Canadian Science Publishing Arctic Science Moriana Armendariz, Nilsen, Cooper. Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition. Arctic Science. 2022;8(3):767-785 FRIDAID 2087797 doi:10.1139/as-2020-0025 2368-7460 https://hdl.handle.net/10037/27733 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 CC-BY Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1139/as-2020-0025 2022-12-15T00:02:36Z Snow cover is a key component in Arctic ecosystems and will likely be affected by changes in winter precipitation. Increased snow depth and consequent later snowmelt leads to greater microbial mineralization in winter, improving soil and vegetation nutrient status. We studied areas with naturally differing snow depths and date of snowmelt in Adventdalen, Svalbard. Soil properties, plant leaf nutrient status, and species composition along with the normalized difference vegetation index (NDVI) were compared for three snowmelt regimes (Early, Mid, and Late). We showed that (1) Late regimes (snow beds) had wetter soils, higher pH, and leaves of Bistorta vivipara (L.) Delarbre and Salix polaris Wahlenb. had higher concentration of nutrients (nitrogen and δ 15 N). Little to no difference was found in soil nutrient concentrations between snowmelt regimes. (2) Late regimes had highest NDVI values, whereas those of Early and Mid regimes were similar. (3) Vegetation composition differed between Early and Late regimes, with Dryas octopetala L. and Luzula arcuata subsp. confusa (Lange) characterizing the former and Equisetum arvense L. and Eriophorum scheuchzeri Hoppe the latter. (4) Trends for plant nutrient contents were similar to those found in a nearby snow manipulation experiment. Snow distribution and time of snowmelt played an important role in determining regional environmental heterogeneity, patchiness in plant community distribution, their species composition, and plant phenology. Article in Journal/Newspaper Adventdalen Arctic Arctic Dryas octopetala Eriophorum Eriophorum scheuchzeri Salix polaris Svalbard University of Tromsø: Munin Open Research Archive Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic Svalbard Arctic Science 8 3 767 785 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Snow cover is a key component in Arctic ecosystems and will likely be affected by changes in winter precipitation. Increased snow depth and consequent later snowmelt leads to greater microbial mineralization in winter, improving soil and vegetation nutrient status. We studied areas with naturally differing snow depths and date of snowmelt in Adventdalen, Svalbard. Soil properties, plant leaf nutrient status, and species composition along with the normalized difference vegetation index (NDVI) were compared for three snowmelt regimes (Early, Mid, and Late). We showed that (1) Late regimes (snow beds) had wetter soils, higher pH, and leaves of Bistorta vivipara (L.) Delarbre and Salix polaris Wahlenb. had higher concentration of nutrients (nitrogen and δ 15 N). Little to no difference was found in soil nutrient concentrations between snowmelt regimes. (2) Late regimes had highest NDVI values, whereas those of Early and Mid regimes were similar. (3) Vegetation composition differed between Early and Late regimes, with Dryas octopetala L. and Luzula arcuata subsp. confusa (Lange) characterizing the former and Equisetum arvense L. and Eriophorum scheuchzeri Hoppe the latter. (4) Trends for plant nutrient contents were similar to those found in a nearby snow manipulation experiment. Snow distribution and time of snowmelt played an important role in determining regional environmental heterogeneity, patchiness in plant community distribution, their species composition, and plant phenology. |
format |
Article in Journal/Newspaper |
author |
Moriana Armendariz, Mikel Nilsen, Lennart Cooper, Elisabeth J. |
spellingShingle |
Moriana Armendariz, Mikel Nilsen, Lennart Cooper, Elisabeth J. Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
author_facet |
Moriana Armendariz, Mikel Nilsen, Lennart Cooper, Elisabeth J. |
author_sort |
Moriana Armendariz, Mikel |
title |
Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
title_short |
Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
title_full |
Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
title_fullStr |
Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
title_full_unstemmed |
Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition |
title_sort |
natural variation in snow depth and snow melt timing in the high arctic have implications for soil and plant nutrient status and vegetation composition |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/27733 https://doi.org/10.1139/as-2020-0025 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Adventdalen Arctic Svalbard |
geographic_facet |
Adventdalen Arctic Svalbard |
genre |
Adventdalen Arctic Arctic Dryas octopetala Eriophorum Eriophorum scheuchzeri Salix polaris Svalbard |
genre_facet |
Adventdalen Arctic Arctic Dryas octopetala Eriophorum Eriophorum scheuchzeri Salix polaris Svalbard |
op_relation |
Arctic Science Moriana Armendariz, Nilsen, Cooper. Natural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation composition. Arctic Science. 2022;8(3):767-785 FRIDAID 2087797 doi:10.1139/as-2020-0025 2368-7460 https://hdl.handle.net/10037/27733 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1139/as-2020-0025 |
container_title |
Arctic Science |
container_volume |
8 |
container_issue |
3 |
container_start_page |
767 |
op_container_end_page |
785 |
_version_ |
1766391815657750528 |