Happy Valley Permanent Vegetation Plots
Walker, D.A., Auerbach, N.A., Nettleton, T.K., Gallant, A., Murphy, S.M. 1997. Happy Valley Permanent Vegetation Plots: Site factors, physical and chemical soil properties, plant species cover, photographs, soil descriptions, and ordination. Arctic System Science Flux Study, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO.
Home //
Preliminary vegetation classification //
Vegetation communities and sites //
Legend for environmental variables //
Environmental data //
Relevé size, percent cover //
Soils data //
Relevé species data //
Appendices:
Field descriptions of soils //
Plot and soil photos //
Plot location map
Field Description of Soil, Plot HV-45
Plot Number: | HV-45 |
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Location: | West-facing foot slope, nonacidic tundra; 15 m North of gridpoint 7671600N 426900E |
Description by: | A. Gallant |
Sample Date: | 7/25/94 |
Sample Time: | |
Classification: | |
Parent Material: | Colluvium and alluvium |
Geomorphic Surface: | Turf hummocks |
Elevation: | 950 ft |
Slope: | 5° |
Aspect: | W |
Vegetation: | Moist Dryas integrifolia, Equisetum arvense, Lupinus arcticus, forb, dwarf-shrub, moss tundra |
Horizon: | Description: |
Oi | 0-6 cm | Sample S-209 |
Black (10 YR 2/1). 0% gravel; abrupt, wavy boundary. Top 2 cm are live mosses (Tomentypnum nitens, Hylocomium splendens, Aulacomnium turgidum). Many very fine and fine roots. | |
Oa | 6-10 cm | Sample S-210 |
Black (10 YR 2/1). 0% gravel; abrupt, broken boundary. Many very fine and fine roots. | |
Bw | 10-59 cm | Sample S-211 |
Dark to very dark gray-brown (2.5 YR 3.5/2). Massive structure with less than 10% gravel. Very sticky, very plastic consistence (wet). Clay texture. Few large, yellow-brown mottles (10 YR 5/6). Less than 5% of total soil volume is cobbles (up to 9 cm in diameter). | |
Permafrost | 59 cm | |