Happy Valley Permanent Vegetation Plots
Entry ID: ARCSS083

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Summary
Abstract: This data set includes environmental, soil, and vegetation information collected from 55 relevé plots at the Happy Valley research site along the Sagavanirktok River in northern Alaska. To complement formal relevé sampling of vegetation during the period July 18-27, 1994, the investigators described each study site (including site topography, surficial geology, estimated snow duration, soil moisture, thaw depth, and signs of disturbance, among other parameters) and collected soil samples adjacent to the relevé plots for laboratory analyses. Soil analyses include measurements of soil chemistry, pH, organic matter content, and texture (percentages of sand, silt, and clay). Ordination analysis displays relevé data in two-dimensional space according to species similarity. Results from ordination reveal that three environmental variables -- stability, exposure, and soil moisture -- significantly affect vegetation composition.

Related URL
Link: GET DATA
Description: data ftp site


Link: GET DATA
Description: access to data and documentation


Geographic Coverage
 N: 69.2333 S: 69.2333  E: -148.5  W: -148.5

Data Set Citation
Dataset Originator/Creator: D.A. Walker, N.A. Auerbach, T.K. Nettleton, A. Gallant, and S.M. Murphy
Dataset Title: Happy Valley Permanent Vegetation Plots
Dataset Release Date: 2001-01-01
Dataset Release Place: Boulder, CO U.S.A.
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Data Presentation Form: Table
Online Resource: http://nsidc.org/data/arcss083.html


Temporal Coverage
Start Date: 1994-07-18
Stop Date: 1994-07-27


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA
GEOGRAPHIC REGION > ARCTIC
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >ALPINE/TUNDRA    [Definition]
BIOSPHERE >VEGETATION >INDIGENOUS VEGETATION    [Definition]
BIOSPHERE >VEGETATION >VEGETATION COVER    [Definition]
BIOSPHERE >VEGETATION >VEGETATION SPECIES    [Definition]
LAND SURFACE >SOILS >CALCIUM    [Definition]
LAND SURFACE >SOILS >MAGNESIUM    [Definition]
LAND SURFACE >SOILS >NITROGEN    [Definition]
LAND SURFACE >SOILS >ORGANIC MATTER    [Definition]
LAND SURFACE >SOILS >PERMAFROST    [Definition]
LAND SURFACE >SOILS >PHOSPHORUS    [Definition]
LAND SURFACE >SOILS >POTASSIUM    [Definition]
LAND SURFACE >SOILS >SOIL SALINITY/SOIL SODICITY    [Definition]
LAND SURFACE >SOILS >SOIL CHEMISTRY    [Definition]
LAND SURFACE >SOILS >SOIL CLASSIFICATION    [Definition]
LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
LAND SURFACE >SOILS >SOIL PH    [Definition]
LAND SURFACE >SOILS >SOIL TEXTURE    [Definition]
LAND SURFACE >TOPOGRAPHY >LANDFORMS    [Definition]
LAND SURFACE >TOPOGRAPHY >TOPOGRAPHIC EFFECTS    [Definition]
BIOLOGICAL CLASSIFICATION >FUNGI >LICHENS    [Definition]


ISO Topic Category
BIOTA
ELEVATION
GEOSCIENTIFIC INFORMATION


Platform
GROUND STATIONS    [Information]
GROUND-BASED OBSERVATIONS    [Information]


Instrument
CAMERAS    [Information]
SOIL SAMPLER    [Information]


Project
ARCSS >Arctic System Science    [Information]
ARCSS/LAII/FLUX >Arctic System Science/Land-Atmosphere-Ice Interaction/fluxes    [Information]
NSF/OPP >Office of Polar Programs, National Science Foundation    [Information]


Keywords
ARCSS083
Arctic System Science Data Coordination Center
Braun-Blanquet
Bryophytes
Detrended Correspondence Analysis
environmental data
Field Description
Happy Valley
Land Surface
landforms
lichens
National Science Foundation
North Slope
Northern Alaska
NSF
NSIDC
OPP-9318530
OPP9318530
Ordination
Permanent Vegetation Plots
Photographs
Plant Communities
Plant Species Cover
Releve Plots
Releves
Sagavanirktok River
Soil Analyses
Soil Chemistry
Soil Descriptions
Soil Moisture
Soil Organic Matter Content
Soil pH
Soil Pits
Soil Properties
Soil Texture
Soils Data
Texture Estimates
Thaw Depth Measurements
Topography
Tundra Ecosystems
Tundra Vegetation
Vascular Plants
Vegetation Classification
Vegetation Communities
Vegetation Cover
Vegetation Ecology
Vegetational


Data Set Progress
COMPLETE


Data Center
National Snow and Ice Data Center    [Information]
Data Center URL: http://nsidc.org
Dataset ID: ARCSS083

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Arctic System Science Data Coordination Center    [Information]
Data Center URL: http://nsidc.org/arcss/
Dataset ID: ARCSS083

Data Center Personnel
Name: NSIDC ARCSS USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA



Distribution
Distribution_Media: ftp
Distribution_Size: individual files are 12 to 1400 KB in size
Distribution_Format: MS Word, MS Excel, JPG, and GIF files


Personnel
DONALD (SKIP) A. WALKER
Role: INVESTIGATOR
Phone: 907-474-2460
Email: ffdaw at uaf.edu
Contact Address:
Institute of Arctic Biology
University of Alaska Fairbanks
City: Fairbanks
Province or State: AK
Postal Code: 99775-6780
Country: USA


NSIDC USER SERVICES
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Publications/References
Walker, D.A., N.A. Auerbach, T.K. Nettleton, A. Gallant, and S.M. Murphy. 1997. Happy Valley permanent vegetation plots: Site factors, physical and chemical soil properties, plant species cover, photographs, soil descriptions, and ordination. Data report, Tundra Ecosystem Analysis and Mapping Laboratory, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO.

Creation and Review Dates
DIF Creation Date: 2001-10-23
Last DIF Revision Date: 2010-12-16

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