Show simple item record

dc.contributor.authorMoriana Armendariz, Mikel
dc.contributor.authorNilsen, Lennart
dc.contributor.authorCooper, Elisabeth J.
dc.date.accessioned2022-12-08T08:24:08Z
dc.date.available2022-12-08T08:24:08Z
dc.date.issued2022-02-16
dc.description.abstractSnow 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<sup>15</sup>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.en_US
dc.identifier.citationMoriana 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):767-785en_US
dc.identifier.cristinIDFRIDAID 2087797
dc.identifier.doi10.1139/as-2020-0025
dc.identifier.issn2368-7460
dc.identifier.urihttps://hdl.handle.net/10037/27733
dc.language.isoengen_US
dc.publisherCanadian Science Publishingen_US
dc.relation.journalArctic Science
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleNatural variation in snow depth and snow melt timing in the High Arctic have implications for soil and plant nutrient status and vegetation compositionen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record

Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)