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-28

Plot Number:	HV-28
Location:	Sideslope of toposequence; 1 km north of Happy Valley camp and about 400 m west of Haul road
Description by:	A. Gallant
Sample Date:	7/24/94
Sample Time:
Classification:
Parent Material:
Geomorphic Surface:	Featureless
Elevation:	1050 ft
Slope:	<5°
Aspect:	S
Vegetation:	Moist Aulacomnium turgidum, Betula nana, Eriophorum vaginatum, Hylocomium splendens, Sphagnum sp., dwarf-shrub, tussock-graminoid tundra
Horizon:	Description:
Oi	0-13 cm | Sample S-144
	Dark yellow-brown (10 YR 3/4). 0% gravel; abrupt, smooth boundary. Top 7 cm comprised of live moss layer (e.g. , Aulacomnium turgidum). Color and bulk density sample are from 7-13 cm depth; mainly composed of roots, many fine and very fine roots.
Oe	13-19 cm | Sample S-145
	Black (10 YR 2/1). 0% gravel; abrupt, smooth boundary. Mostly composed of roots and sedge parts. Many very fine, fine roots and common coarse roots.
Oa	19-25 cm | Sample S-146
	Black (10 YR 2/1). 0% gravel; abrupt, smooth boundary. Many very fine and fine roots.
Bw	25+ cm | Sample S-147
	Dark gray-brown (10 YR 4/2). 0% gravel. Sticky, plastic consistence (wet). Silty clay loam texture. Layer includes strong brown, medium size mottles (7.5 YR 4/6). Common very fine foots.
Permafrost	25 cm |