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-1

Plot Number:	HV-1
Location:	Fluvial Terrace
Description by:	A. Gallant
Sample Date:	7/18/94
Sample Time:	15:30
Classification:
Parent Material:	Stabilized alluvium, sands and cobbles
Geomorphic Surface:	Flat centered polygons
Elevation:	900 ft
Slope:	0°
Aspect:	Flat
Vegetation:	Dry Arctous rubra, Dryas integrifolia, Lupinus arcticus, Salix glauca, dwarf shrub, forb tundra
Horizon:	Description:
Oa	0-9 cm | Sample S-68
	Very dark brown (10 YR 2/2) silt. Weak, medium, subangular blocky breaking to moderate, fine, granular structure; 0% gravel; slightly sticky, slightly plastic consistence (wet); many very fine roots, common fine roots; abrupt, smooth boundary
B	9-41 cm | Sample S-69
	Very dark brown to gray brown (10 YR 3/1.5) sandy loam. Weak, medium, subangular blocky breaking to moderate, very fine, granular structure; 10% gravel; slightly sticky, slightly plastic consistence (wet); common fine roots; cobbles up to 15 cm concentrated at top of layer, also interspersed throughout layer.
C	41+ cm | no sample
	cobble layer. Notes: thaw is greater than 41 cm, but cobble layer prohibits further digging or probing.