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-30

Plot Number:	HV-30
Location:	North hillslope crest 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:	Hillslope colluvium and till
Geomorphic Surface:	Featureless
Elevation:	1000 ft
Slope:	0°
Aspect:	Flat
Vegetation:	Moist Arctagrostis latifolia, Betula nana, Carex bigelowii, Eriophorum vaginatum, Hylocomium splendens, Petasites frigidus, Sphagnum sp., tussock-graminoid, dwarf-shrub tundra
Horizon:	Description:
Oi1	0-10 cm | Sample S-152
	Black to very dark brown (10 YR 2/1.5). Abrupt, smooth boundary. Top 6 cm composed of moss (Aulacomnium turgidum), lichens and roots.
Oi2	10-18 cm | Sample S-153
	Strong brown (7.5 YR 4/6). Abrupt, smooth boundary. Many very fine roots, fine roots common. Mainly composed of Sphagnum moss.
Oa	18-21 cm | Sample S-154
	Black (10 YR 2/1). Abrupt, smooth boundary. Many very fine and medium roots. Fine roots common.
Bw	21+ cm | Sample S-155
	Gray (10 YR 5/1). Massive structure with less than 10% gravel. Sticky, plastic consistence (wet). Silty clay loam texture
Permafrost	21 cm |