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-15

Plot Number:	HV-15
Location:	Bluff overlooking Sag. river north of access road, 2 km south of the Happy Valley camp
Description by:	A. Gallant
Sample Date:	7/19/94
Sample Time:
Classification:
Parent Material:	Glacial till, undifferentiated. hillslope colluvium
Geomorphic Surface:	Gelifluction lobes
Elevation:	1000 ft
Slope:	30°
Aspect:	E
Vegetation:	Moist Abietinella abietina, Arctous rubra, Salix glauca, Salix lanata, low-shrub tundra
Horizon:	Description:
Oi	0-2 cm | Sample S-104
	Dark brown (7.5 YR 3/2). Abrupt, smooth boundary. Composed of moss (e.g. Abietinella abietina), many very fine and fine roots.
Oe	2-10 cm | Sample S-105
	Dark red-brown (5 YR 2.5/1.5). Abrupt, smooth boundary. Composed of moss (e.g. Abietinella abietina), many very fine and fine roots.
Oa/B	10-37 cm | Sample S-106
Oa
	Black (10 YR 2/1). Weak, fine, subangular blocky structure with 25% gravel. Nonsticky, nonplastic consistence (wet). Silty texture.
B
	Very dark gray-brown (10 YR 3/2). Weak, fine, subangular blocky structure with 25% gravel. Slightly sticky, plastic consistence (wet). Clay loam texture.
B	37+ cm | Sample S-107
	Dark brown (10 YR 3/3). Weak, fine, subangular blocky structure. 25% gravel; slightly sticky, plastic consistence (wet). Clay loam texture; deeper soil description prevented by rocks.