Plant Available Nutrients, Utqiagvik (Barrow), Alaska, Ver. 1

DOI: https://doi.org/10.5440/1120920
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NGEE Arctic Record ID: NGA056
Data Version: 1.0
Abstract

This dataset reports measurements of plant available nutrients made using Plant Root Simulator (PRS) probes (Western Ag Innovations Inc.) during 2012 and 2013 at the Next-Generation Ecosystem Experiments (NGEE) Arctic field site near Utqiagvik (Barrow), Alaska. In 2012, Ca, Mg, K, P, Fe, Mn, Cu, Zn, B, S, Pb, Al, Cd, NO3-N and NH4-N availability were measured during spring, summer and winter from probes installed in the centers, edges and troughs of four polygons in each of four areas of contrasting moisture regime and polygon type (Areas A, B, C, and D of Intensive Site 1). In 2013, probes were installed in centers, edges and troughs of four polygons in each of two areas (A and B, with low-centered and high-centered polygons respectively) at two-week intervals and at 3 soil depths to capture fine-scale seasonal dynamics of NO3-N and NH4-N. PRS probes are ion exchange resin membranes held in plastic supports that are inserted into soil to measure ion supply in situ. The anion and cation exchange with the membrane is intended to mimic plant uptake and thus provide a relevant measure of soil nutrient bioavailability. Measurements are made per area of probe membrane and cannot be converted to concentrations or related to soil volume. This dataset includes five csv files and three pdf files.

The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research.

The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska.

Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).

Authors
Victoria Sloan (cevls@bristol.ac)
Colleen Iversen (iversencm@ornl.gov) 0000-0001-8293-3450
Jennifer Liebig ()
Bryan Curtis (Curtis@colorado.edu)
Melanie Hahn (mshahn@lbl.gov)
Julia Siegrist ()
Richard Norby (rnorby@utk.edu) 0000-0002-0238-9828
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Dataset Citation
Victoria Sloan, Colleen Iversen, Jennifer Liebig, Bryan Curtis, Melanie Hahn, Julia Siegrist, Richard Norby. 2017. Plant Available Nutrients, Utqiagvik (Barrow), Alaska, Ver. 1. Next Generation Ecosystem Experiments Arctic Data Collection, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, USA. Dataset accessed on [INSERT_DATE] at https://doi.org/10.5440/1120920.
Dates
2012-06-23 - 2013-09-13
Geographic Location
NGEE Arctic Utqiagvik (Barrow), Alaska
North71.35
South71.2
East-156.4
West-156.7
Place Keywords:
Intensive site 1 | North Slope | Barrow, Alaska | Barrow Environmental Observatory | Utqiagvik, Alaska
Subject Keywords:
Plant available nutrients | Plant available aluminum | Plant available manganese | Plant available potassium | Plant available phosphorus | Plant available lead | Plant available calcium | Plant available cadmium | Plant available sulfur | Plant available nitrogen as ammonium | Plant available copper | Plant available iron | Plant available zinc | Plant available magnesium | Plant available nitrogen as nitrate | Plant available boron |
GCMD Keywords
N/A
Methodology
In 2012, 4 pairs (1 anion, 1 cation) of probes were installed at a single depth of 0 - 5.5 cm close to 48, 1 x 1 m plots located in center, edge and trough positions in 4 replicate polygons (1-4) in each of 4 study areas representing different polygon types (A,B,C,D). Availability of Ca, Mg, K, P, Fe, Mn, Cu, Zn, B, S, Pb, Al, Cd, NO3-N and NH4-N were measured from 23rd June - 27th July, 27th July - 28th August and 28th August - 18th June 2013. In 2013, probes were installed only in 2 study areas (A, B), and measurements made during six 14 day intervals between 18th June and 13th September. For the first two time intervals, probes were installed at 0 - 5.5 cm, for the third and fourth interval, at both 0 - 5.5 and 11 - 16.5 cm, and for the final two intervals, at 0 - 5.5 cm, 11 - 16.5 cm and 22 - 27.5 cm depth. Probes were installed and analyzed according to the Plant Root Simulator Operations Manual (Western Ag Innovations Inc., Saskatoon, Canada); details specific to this study are provided in the User File.
Related References
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Related Identifiers
N/A
Metadata Contact
Contact information for the individual or organization that is knowledgeable about the data.
Person: Victoria Sloan
Organization: University of Bristol
Email: cevls@bristol.ac.uk
Point of Contact
Contact information for the individual or organization that is knowledgeable about the data.
Person: Richard Norby
Organization: University of Tennessee at Knoxville
Email: rnorby@utk.edu
Dataset Usage Rights
Public Datasets

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0.

See the NGEE Arctic Data Policies for more details https://ngee-arctic.ornl.gov/data-policies.

Distribution Point of Contact
Contact: Data Center Support
Organization: Next-Generation Ecosystem Experiments (NGEE) Arctic Project, Oak Ridge National Laboratory
Email: support@ngee-arctic.ornl.gov