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-11

Plot Number:	HV-11
Location:	Floodplain, dry scrub area
Description by:	A. Gallant
Sample Date:	7/18/94
Sample Time:	14:00
Classification:
Parent Material:	Stabilized Alluvium (sands and gravels)
Geomorphic Surface:	Gently rolling or irregular microrelief
Elevation:	950 ft
Slope:	0°
Aspect:	Flat
Vegetation:	Dry Arctous rubra, Salix alaxensis, Shepherdia canadensis, tall shrubland (riparian)
Horizon:	Description:
O	0-2 cm | No sample
	Very dark brown (10 YR 2/2). 0% gravel with abrupt, smooth boundary. Live moss, plant litter, many very fine roots, many fine roots, many medium roots.
A	2-6 cm | Sample S-95
	Very dark gray (10 YR 3/1). Moderate, fine, granular structure with 0% gravel. Slightly sticky, slightly plastic consistence (wet). Sandy loam texture with abrupt, smooth boundary. Common fine roots, many very fine roots, common medium roots.
C1	6-9 cm | No sample
	Black (5 YR 2.5/1.5). Single grain structure. Nonsticky, nonplastic consistence (wet). Sandy texture with abrupt, wavy boundary. Many very fine roots, common fine roots, common medium roots. Layer too thin to sample.
C2	9-73 cm | Sample S-96
	Very dark gray-brown ( 2.5 YR 3/2). Weak, medium, subangular blocky structure breaks into moderate, fine granular. Slightly sticky, slightly plastic consistence (wet). Sandy loam texture with many very fine rocks, many fine roots, common medium roots, common coarse roots.
Permafrost	73 cm | No sample