Search results for " active layer"

showing 2 items of 2 documents

Prokaryotic assemblages within permafrost active layer at Edmonson Point (Northern Victoria Land, Antarctica)

2018

This study was aimed at gaining insights on the prokaryotic community (in terms of both taxonomic composition and activities) inhabiting the active layer at Edmonson Point, an ice-free area on the eastern slope at the foot of Mount Melbourne (Northern Victoria Land, Antarctica). Samples were collected during the thawing period, when microbial physiological activities are restored to utilize previously frozen organic substrates. Despite the very small cell sizes (600 daltons) substrates, as indicated also by the obtained rates of enzymatic hydrolytic activities over proteolytic, glycolitic and phosphoric compounds. Taxonomical composition showed that Proteobacteria, Actinobacteria and Firmic…

0301 basic medicinemetabolic activitiesFirmicutesta1172seasonally thawed active layerSoil ScienceikiroutaAntarctica; Metabolic activities; Prokaryotic community; Seasonally thawed active layer; Microbiology; Soil SciencePermafrostMicrobiologyActinobacteria03 medical and health sciencesAbundance (ecology)Organic mattermikrobitaineenvaihduntaNitrogen cycleAntarctica Metabolic activities Prokaryotic community Seasonally thawed active layer Microbiology Soil Sciencechemistry.chemical_classificationbiologyEcologyta1183prokaryotic communitybiology.organism_classificationmikrobisto030104 developmental biologychemistryHabitatEnvironmental scienceAntarcticaantarktinen alueProteobacteria
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Nitrous oxide fluxes from permafrost regions

2020

This dataset is a synthesis of published nitrous oxide (N2O) fluxes from permafrost-affected soils in Arctic, Antarctic, and Alpine permafrost regions. The data includes mean N2O flux rates measured under field (in situ) conditions and in intact plant-soil systems (mesocosms) under near-field conditions. The dataset further includes explanatory environmental parameters such as meteorological data, soil physical-chemical properties, as well as site and experimental information. Data has been synthesized from published studies (see 'Further details'), and in some cases the authors of published studies have been contacted for additional site-level information. The dataset includes studies publ…

Temperature airNumber of pointsHemeroby/disturbanceannual meanNumber of measurement seasonsTemperature soilDensityArea localityPrecipitationgravimetricmeanNitrateTime in minutesAnalytical methodType of studyReference of dataTemperature air annual meanArea/localitypH soilCarbon Nitrogen ratioYear of observationWater holding capacityOriginal unitSample code/labelReplicatesNitrous oxidepHPermafrost extentThaw depth of active layer meanTemperatureMonthSample code labelZoneWater filled pore space calculatedExperimental treatmentCountryPrecipitation annual meanOrganic carbon soilEarth System ResearchSoil water content gravimetricType of chamberAmmoniumPresence/absenceNitrogenairvolumetricLocationactive layerType of disturbanceSiteVegetation typeWater filled pore spaceSoil water content volumetricSoil water contentin mass nitrous oxidesoilThaw depth of active layercalculatedbulkmaximumLONGITUDEOrganic carbonEcosystemPublication of dataPresence absenceSoil organic matterEvent labelThaw depth of active layer maximumNumber of measurementsHemeroby disturbanceNitrous oxide flux in mass nitrous oxideCarbon/Nitrogen ratiofluxOriginal valueLATITUDEDayNitrogen soilSoil moistureDensity active layer bulk
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