2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation
Measurements of ecosystem respiration in high arctic prostrate dwarf-shrub tundra. Measurements were conducted from mid June to the end of August in 2010, 2011 and 2012 at a long-term snowpack manipulation experiment: consisting of two 1.2 m tall snow fences erected in the summer of 2003. Fences wer...
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Arctic Data Center
2014
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dataone:urn:uuid:6f7c20f1-007e-4153-8ac4-b24023a8b4e7 2024-06-03T18:46:42+00:00 2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation M. Lupascu J. M. Welker X. Xu Claudia I. Czimczik ENVELOPE(68.83,68.83,76.53,76.53) BEGINDATE: 2010-05-01T00:00:00Z ENDDATE: 2012-08-31T00:00:00Z 2014-01-13T14:31:44Z https://search.dataone.org/view/urn:uuid:6f7c20f1-007e-4153-8ac4-b24023a8b4e7 unknown Arctic Data Center EARTH SCIENCE > LAND SURFACE > SOILS > SOIL RESPIRATION EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CO2 ANALYZERS IN SITU/LABORATORY INSTRUMENTS > SPECTROMETERS/RADIOMETERS > AMS > ACCELERATOR MASS SPECTROMETERS OBSERVATORY POINT LESS THAN 1 METER DAILY TO WEEKLY WEEKLY TO MONTHLY Dataset 2014 dataone:urn:node:ARCTIC 2024-06-03T18:06:34Z Measurements of ecosystem respiration in high arctic prostrate dwarf-shrub tundra. Measurements were conducted from mid June to the end of August in 2010, 2011 and 2012 at a long-term snowpack manipulation experiment: consisting of two 1.2 m tall snow fences erected in the summer of 2003. Fences were aligned perpendicular to the dominant winter wind direction and snow naturally accumulates on the leeward side in a continuously tapering drift. At each fence, 2.0x0.8 m2 plots were delimited within three larger, pre-established main plots at each of three levels of winter snowpack: ambient (control, ~0.25 m), intermediate (SFM, ~0.55 m), and deep (SFH, ~1.1 m). Plots were oriented to span the transition between vascular plants and bare soil/cryptogamic crust, such that each comprised approximately 50%, to facilitate scaling from the plot to ecosystem level. Measurements were taken during the snow-free period from end of May-early June for the ambient conditions, when plots became snow-free and it was possible to clearly locate the chamber base without compacting snow, to the 20th of August in 2010, 2011 and 2012. Ecosystem respiration and pore space carbon dioxide CO2 concentrations were measured two to three times per week. Ecosystem respiration was determined through the use of dark chambers (30 cm i.d., 8 L V). In June, collars were inserted to ~2 cm depth, sealed with soil material on the outside, and left in place for the sampling season. To calculate Reco, air was circulated between the chamber's headspace connected to an infrared gas analyzer and a data logger (LI-840, LI-1400, LI-COR Biosciences, Lincoln, NE, USA) at a rate of 0.5 L min-1. Flux rates were estimated from the slope of time vs. CO2 concentration curves using linear regression. In parallel, we measured soil temperature (15-077, Fisher Scientific, resolution ±0.1oC) at 5 and 10 cm depth and soil water content (SWC, Hydrosense, Campbell Scientific, Logan, UT, USA, resolution ±0.1%) at 5 cm depth. Dataset Arctic Tundra Arctic Data Center (via DataONE) Arctic ENVELOPE(68.83,68.83,76.53,76.53) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL RESPIRATION EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CO2 ANALYZERS IN SITU/LABORATORY INSTRUMENTS > SPECTROMETERS/RADIOMETERS > AMS > ACCELERATOR MASS SPECTROMETERS OBSERVATORY POINT LESS THAN 1 METER DAILY TO WEEKLY WEEKLY TO MONTHLY |
spellingShingle |
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL RESPIRATION EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CO2 ANALYZERS IN SITU/LABORATORY INSTRUMENTS > SPECTROMETERS/RADIOMETERS > AMS > ACCELERATOR MASS SPECTROMETERS OBSERVATORY POINT LESS THAN 1 METER DAILY TO WEEKLY WEEKLY TO MONTHLY M. Lupascu J. M. Welker X. Xu Claudia I. Czimczik 2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
topic_facet |
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL RESPIRATION EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CO2 ANALYZERS IN SITU/LABORATORY INSTRUMENTS > SPECTROMETERS/RADIOMETERS > AMS > ACCELERATOR MASS SPECTROMETERS OBSERVATORY POINT LESS THAN 1 METER DAILY TO WEEKLY WEEKLY TO MONTHLY |
description |
Measurements of ecosystem respiration in high arctic prostrate dwarf-shrub tundra. Measurements were conducted from mid June to the end of August in 2010, 2011 and 2012 at a long-term snowpack manipulation experiment: consisting of two 1.2 m tall snow fences erected in the summer of 2003. Fences were aligned perpendicular to the dominant winter wind direction and snow naturally accumulates on the leeward side in a continuously tapering drift. At each fence, 2.0x0.8 m2 plots were delimited within three larger, pre-established main plots at each of three levels of winter snowpack: ambient (control, ~0.25 m), intermediate (SFM, ~0.55 m), and deep (SFH, ~1.1 m). Plots were oriented to span the transition between vascular plants and bare soil/cryptogamic crust, such that each comprised approximately 50%, to facilitate scaling from the plot to ecosystem level. Measurements were taken during the snow-free period from end of May-early June for the ambient conditions, when plots became snow-free and it was possible to clearly locate the chamber base without compacting snow, to the 20th of August in 2010, 2011 and 2012. Ecosystem respiration and pore space carbon dioxide CO2 concentrations were measured two to three times per week. Ecosystem respiration was determined through the use of dark chambers (30 cm i.d., 8 L V). In June, collars were inserted to ~2 cm depth, sealed with soil material on the outside, and left in place for the sampling season. To calculate Reco, air was circulated between the chamber's headspace connected to an infrared gas analyzer and a data logger (LI-840, LI-1400, LI-COR Biosciences, Lincoln, NE, USA) at a rate of 0.5 L min-1. Flux rates were estimated from the slope of time vs. CO2 concentration curves using linear regression. In parallel, we measured soil temperature (15-077, Fisher Scientific, resolution ±0.1oC) at 5 and 10 cm depth and soil water content (SWC, Hydrosense, Campbell Scientific, Logan, UT, USA, resolution ±0.1%) at 5 cm depth. |
format |
Dataset |
author |
M. Lupascu J. M. Welker X. Xu Claudia I. Czimczik |
author_facet |
M. Lupascu J. M. Welker X. Xu Claudia I. Czimczik |
author_sort |
M. Lupascu |
title |
2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
title_short |
2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
title_full |
2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
title_fullStr |
2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
title_full_unstemmed |
2010-2012 Summertime (May-Aug) Ecosystem Respiration (flux, 14C data isoflux, pore space data) at N Mnt. Snowpack Manipulation |
title_sort |
2010-2012 summertime (may-aug) ecosystem respiration (flux, 14c data isoflux, pore space data) at n mnt. snowpack manipulation |
publisher |
Arctic Data Center |
publishDate |
2014 |
url |
https://search.dataone.org/view/urn:uuid:6f7c20f1-007e-4153-8ac4-b24023a8b4e7 |
op_coverage |
ENVELOPE(68.83,68.83,76.53,76.53) BEGINDATE: 2010-05-01T00:00:00Z ENDDATE: 2012-08-31T00:00:00Z |
long_lat |
ENVELOPE(68.83,68.83,76.53,76.53) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
_version_ |
1800869974341844992 |