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-25

Plot Number:	HV-25
Location:	Shrubby floodplain, base of southern facing toposequence 1 km north of Happy Valley camp
Description by:	N. Auerbach and A. Gallant
Sample Date:	7/20/94
Sample Time:	16:15
Classification:
Parent Material:	Stabilized fine-grained alluvium
Geomorphic Surface:	Irregular microrelief
Elevation:	950 ft
Slope:	<5°
Aspect:	S
Vegetation:	Moist Betula nana, Petasites frigidus, Sphagnum squarrosum, low-shrub tundra (riparian)
Horizon:	Description:
Oe	0-8 cm | Sample S-133
	(10 YR 2/1). 0% gravel; abrupt, smooth boundaries. Comprised of some moss and roots and woody debris from Salix and Betula. Many very fine, fine and medium roots; common coarse roots.
A	8-21+ cm | Sample S-134
	(10 YR) 3.5/2). Weak, medium granular structure with 0% gravel. Slightly sticky, slightly plastic consistence (wet). Loam texture. Many very fine, fine and medium roots; common coarse roots.
Permafrost	21 cm |