Happy Valley Permanent Vegetation Plots

Externally Distributed Data Set NSIDC does not archive this data set. Please contact the investigator or data compiler to acquire these data.

Data Contributors WALKER, DONALD (SKIP) A. Parameters PLANTS > LICHENS SOILS > CALCIUM SOILS > MAGNESIUM SOILS > NITROGEN SOILS > ORGANIC MATTER SOILS > PERMAFROST SOILS > PHOSPHORUS SOILS > POTASSIUM SOILS > SOIL CHEMISTRY SOILS > SOIL CLASSIFICATION SOILS > SOIL MOISTURE/WATER CONTENT SOILS > SOIL PH SOILS > SOIL SALINITY/SOIL SODICITY SOILS > SOIL TEXTURE TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA TOPOGRAPHY > LANDFORMS TOPOGRAPHY > TOPOGRAPHIC EFFECTS VEGETATION > INDIGENOUS VEGETATION VEGETATION > VEGETATION COVER VEGETATION > VEGETATION SPECIES Instruments CAMERAS SOIL SAMPLER

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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.

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Data Citation

The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.

D.A. Walker, N.A. Auerbach, T.K. Nettleton, A. Gallant, and S.M. Murphy. 2001. Happy Valley Permanent Vegetation Plots. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center.

See Also

• Alaska Geobotany Center
• Frozen Ground Data Center
• Contact User Services