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-22

Plot Number:	HV-22
Location:	Side slope of toposequence; about 1 km north of Happy Valley camp
Description by:	A. Gallant
Sample Date:	7/20/94
Sample Time:
Classification:
Parent Material:	Colluvium and till
Geomorphic Surface:	Gelifluction lobes
Elevation:	975 ft
Slope:	20°
Aspect:	N
Vegetation:	Moist Betula nana, Cassiope tetragona, Drepanocladus sp., Dryas integrifolia, Hylocomium splendens, Ptilidium ciliare, Salix glauca, Vaccinium uliginosum, dwarf-shrub tundra
Horizon:	Description:
Oe	0-2 cm | No sample
	Black (10 YR 2/2). Composed of slightly compressed leaf litter, mosses (Drepanocladus uncinatus, Ptilidium ciliare) and fine roots.
Oa	2-7 cm | Sample S-124
	Black (5 YR 2.5/1.5). Less than 10% gravel. Highly decomposed.
A	7-12 cm | Sample S-125
	Black (5 YR 2.5/1.5). Weak, fine, subangular blocky structure breaks into weak, very fine granular structure; less than 10% gravel. Slightly sticky, slightly plastic consistence (wet). Silty loam texture.
B	12-42+ cm | Sample S-126
	Dark gray-brown (10 YR 4/2). Weak, fine, subangular blocky structure breaks into weak, very fine granular structure; 25% gravel. Sticky, plastic consistence (wet) with loam texture. Mottles are common and fine in size.
Permafrost	86 cm |