Imnavait Creek Permanent Vegetation Plots

Walker DA, Lederer ND, and Walker MD. 1987. Permanent vegetation plots: Site factors, soil physical and chemical properties and plant species cover. Department of Energy R4D Program, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO.

Home // Vegetation communities and microsites // Summary of areas sampled // Environmental variables // Environmental information // Soil descriptions // Soil physical characteristics // Soil chemical characteristics // Species composition //
Appendices: Plot and soil photos // Equivalent vegetation units // Plot location map

Appendix 3. Approximate equivalent vegetation units in several northern Alaska and northwestern Canadian studies

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R4D Community types/subtypes	Yukon Delta	Chukchi-Imuruk	Cape Thompson	NW Alaska	Atkasook	Umiat	Arrigetch Peaks	Yukon	Yukon, N.W.T.	Alaska Statewide Classification
Walker (1987, Level C)	Tande and Jennings (1986)	Racine and Anderson	Johnson et. al. (1966)	Hanson (1953)	Komarkova and Webber (1980)	Churchill (1955)	Cooper (1986)	Lambert (1968)	Ritchie (1984)	Viereck et al. Level IV (1986)	Viereck et al. Level V (1986)
Dry Dryas octopetala, Selaginella sibirica dwarf-shrub, fruticose-lichen tundra	Dry, non-tussock sedge, dwarf shrub, fruticose lichen type (D1)	Dryas dwarf shrub tundra	Dryas fell-field					Salicetum phlebophyllae	Salix phlebophylla type	Dryas tundra [2.D.(1)a.]
Dry Dryas octopetala, Vaccinium vitis-idaea dwarf-shrub, fruticose-lichen tundra		Lichen dwarf shrub tundra, also Dryas dwarf shrub tundra	Dryas fell-field							Dryas tundra [2.D.(1)a.]	Dryas octopetala-Vaccinium spp. (Talbot 1984; Jorgenson 1984; Racine and Young 1978)
Dry Arctous alpina, Hierochloe alpina dwarf-shrub, fruticose-lichen tundra		Lichen dwarf shrub tundra		Alpine bearberry-mountain cranberry type	Diapensia lapponica, Alectoria spp. evergreen dwarf scrub		Vaccinio uliginosi-Salicetum	Salicetum phlebophyllae phlebophyllae	Salix phlebophylla type	Bearberry tundra [2.D.(2)a.]	Arctostaphylos alpina-Vaccinium vitis-idaea (Hanson 1953) Arctostaphyllos alpina-Vaccinium spp.-Empetrum nigrum-Cassiope tetragona-lichens (Jorgenson 1984)
Dry Vaccinium uliginosum, Arctous alpina dwarf shrub, fruticose-lichen tundra		Lichen dwarf shrub tundra						Vaccinio-Betuletum glandulosae		Vaccinium tundra [2.D.(2)b.]	Vaccinium spp.-Ledum palustre-Arctostaphylos alpina-Cassiope tetragona (Johnson et al. 1966; Hanson 1958), Vaccinium uliginosum-V. vitis idaea (Hettinger and Janz 1974), Vaccinium uliginosum-Empetrum nigrum-Ledum palustre-Cladonia spp. (Steiger et al. 1983)
Dry Cassiope tetragona, Dryas integrifolia dwarf-shrub, fruticose-lichen tundra			Ericaceous snow-bed community	Heather-blueberry-moss type	Cassiope tetragona, Dryas integrifolia evergreen dwarf scrub		Cassiopo tetragonae-Dryadetum alaskensis		Dryas-Carex scirpoidea type	Cassiope tundra [2.D.(2)e.]	Cassiope tetragona-Dryas integrifolia (Komárková and Webber 1978; Koranda 1960)
Dry Festuca altaica, Carex microchaeta grass, fruticose-lichen tundra										Midgrass-shrub [3.A.(1)c.]
Dry Cassiope tetragona, Calamagrostis inexpansa dwarf-shrub, fruticose-lichen tundra			Ericaceous snow-bed community	Heather-blueberry-moss type	Diapensia lapponica, Alectoria spp. evergreen dwarf scrub			Betulo-Ledetum decumbentis, Facies cassiopeetrum tetragonae		Cassiope tundra [2.D.(2).]
Moist Cassiope tetragona, Hylocomium splendens dwarf-shrub, fruticose-lichen tundra			Ericaceous snow-bed community	Heather-blueberry-moss type						Cassiope tundra	Cassiope tetragona-Vaccinium vitis-idaea-Carex bigelowii-Hylocomium splendens-lichens (Jorgenson 1984)
Moist Salix rotundifolia, Saxifraga rivularis dwarf-shrub, fruticose-lichen tundra										Willow tundra [2.D.(3)a.]	Salix rotundifolia (Klein 1958: Komárková and Webber 1978; White et al. 1975) Salix rotundifolia-Oxyria digyna (Anderson 1974)
Moist Juncus biglumis, Luzula arctica barren
Moist Carex bigelowii, Dryas integrifolia nontussock-sedge, dwarf-shrub tundra		Bigelow's sedge dwarf shrub tundra								Sedge-Dryas tundra [3.A.(2)j.]	Carex bigelowii-Dryas integrifolia (Childs 1969; Hettinger and Janz 1974; Webber et al. 1978)
Moist Eriophorum vaginatum, Sphagnum spp. tussock-sedge, dwarf-shrub tundra	Moist Eriophorum vaginatum-Ledum decumbens-Betula nana-Rubus chamaemorus-fruticose lichen tussock sedge, dwarf shrub, fruticose lichen type (M12A)	Cottongrass tussock-dwarf shrub tundra, also Cottongrass-Bigelow's sedge tussock-dwarf shrub tundra	Eriophorum tussock	Cottongras-sedge-dwarf heath shrub complex	Eriophorum vaginatum seasonal short grass	Eriophorum tussock-dwarf shrub heath subtype		Betulo-Eriophoretum vaginati, Facies eriophoretosum vaginati, also salicetosum reticulatae	Betula glandulosa-Eriophorum type, also Eriophorum vaginatum type	Mixed shrub-sedge tussock tundra [2.C.2(a).] Tussock tundra [3.A.(2)d.]	Eriophorum vaginatum-Betula nana-Ledum palustre-Vaccinium spp.-Carex bigelowii (Churchill 1955; Hopkins and Sigafoos 1951; Racine 1977; Viereck 1966; Young and Racine 1977; Racine and Anderson 1979; Brock and Burke 1980; Nodler et al. 1978)
Moist Carex bigelowii, Sphagnum spp. nontussock-sedge, dwarf-shrub tundra	Moist non-tussock sedge, dwarf shrub, fruticose lichen type (M3)	Bigelow's sedge tussock-dwarf shrub tundra	Carex bigelowii high center polygon			Carex-dwarf shrub heath type				Mixed shrub-sedge tussock tundra [2.C.(2)a.] Sedge-willow tundra [3.A.(2)h.]	Carex bigelowii-Betula nana-Salix planifolia-Ledum palustre-Vaccinium spp. (Racine and Anderson 1979; Racine and Young 1978) Carex bigelowii-Salix planifolia (Hettinger and Janz 1974, Johnson et al. 1966, Koranda 1960)
Moist Betula nana, Rubus chamaemorus dwarf-shrub, moss tundra	Moist Petasites frigidus-Rubus chamaemorus-Ledum decumbens-Betula nana-(Empetrum nigrum)-moss spp. forb, dwarf shrub moss type (M11b)			Cloudberry-dwarf shrub-marsh type, also sedge-Sphagnum-moss marsh	Betula nana, Rubus chamaemorus, Sphagnum spp. open deciduous dwarf scrub			Betulo-chamaemoretum		Shrub-birch ericaceous [2.C.(2)d.]	Betula glandulosa-Vaccinium vitis-idaea-Rubus chamaemorus-Sphagnum spp. (Bos 1967; Dachnowski-Stokes 1941; Drew and Shanks 1965; Fries 1977; Hanson 1953; Hogan and Tande 1983; Johnson et al. 1966; Jorgenson 1984; Komárková and Webber 1978; Racine 1976; Racine and Anderson 1979; Rigg 1914; Steiger et al. 1983; Tande 1983; Webber et al. 1978; Young and Racine 1978)
Moist Betula nana low-shrub tundra (includes numerous birch low shrub stand types)				Dwarf birch-heath-lichens type				Betulo-Ledetum decumbentis, Facies betulo-ledetosum decumbentis	Betula-Ledum type	Shrub birch-willow [2.C.(2)f.]
Moist Salix planifolia ssp. pulchra low-shrub tundra (includes numerous diamond-leafed willow low shrub stand types)		Low-medium willow shrub thicket		Greenleaf willow type						Willow [2.C.(1)b.] also shrub birch-willow [2.C.(1)c.]
Wet Salix fuscescens, Sphagnum lenense sedge, dwarf-shrub, moss tundra	Wet Carex rariflora-Betula nana-Salix fuscescens-brown Sphagnum non-tussock sedge, dwarf shrub moss type (W4b)							Caricetum rariflorae		Wet sedge meadow tundra [3.A.(3)a.]
Wet Carex aquatilis, Salix fuscescens sedge, dwarf-shrub, moss tundra	Wet Carex aquatilis-Sphagnum spp. sedge, moss type (W3e), also Wet Carex aquatilis-Eriophorum russeolum-Ledum decumbens-brown Sphagnum non-tussock sedge, dwarf shrub, moss type (W4a)		Eriophorum-Carex wet meadow					Caricetum aquatilis, Facies salicosum arbutifoliae	Carex aquatilis type	Wet sedge meadow tundra [3.A.(3)a]
Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium low-shrub, sedge tundra	Wet Salix planifolia low shrub type (W13a)							Eriophoretum angustifolii, Facies salicosum pulchrae, also salicetum pulchrae, Facies betulosum glandulosae		Low willow [2.C.(1)b.]
Wet Carex rotundata, Sphagnum lindbergii sedge tundra				Sedge-Sphagnum-moss marsh				Eriophoretum scheuchzeri		Wet sedge meadow tundra [3.A.(3)a.]
Wet Carex aquatilis, Eriophorum angustifolium sedge tundra		Water sedge wet meadow, also tall cottongrass wet meadow	Eriophorum-Carex wet meadow	Sedge marshes	Carex aquatilis seasonal short grass	Carex aquatilis marsh type		Eriophoretum angustifolii, Facies eriophorosum angustifolii, also Caricetum aquatilis, Facies caricosum aquatilis		Wet sedge meadow tundra [3.A.(3)a.]	Carex aquatilis-Eriophorum angustifolium (Batten 1977; Bergman et al. 1977; Childs 1969; Hopkins and Sigafoos 1951; Porter 1966; Spetzman 1959; Racine 1977, 1978)
Aquatic Carex aquatilis, Eriophorum angustifolium sedge marsh		Water sedge wet meadow, also tall cottongrass wet meadow	Eriophorum-Carex wet meadow	Sedge marshes, also aquatic types	Carex aquatilis seasonal short grass			Eriophoretum angustifolii, Facies eriophorosum angustifolii, Caricetum aquatilis, Facies caricosum aquatilis		Wet sedge meadow tundra [3.A.(3)a.]	Carex aquatilis-Eriophorum angustifolium (Batten 1977; Bergman et al. 1977; Childs 1969; Hopkins and Sigafoos 1951; Porter 1966; Spetzman 1959; Racine 1977, 1978)
Aquatic Sparganium hyperboreum, Hippuris vulgaris forb marsh		Aquatic meadow	Aquatic community	Aquatic types						Burreed [3.D.(1)d.]	Sparganium hyperboreum (Johnson et al. 1966; Murray 1974; Spetzman 1959; Heusser 1960)
Aquatic Arctophila fulva grass marsh	Wet Arctophila fulva-(Hippuris tetraphylla) grass forb type (W5a)	Aquatic meadow	Aquatic community		Arctophila fulva seasonal short grass			Arctophiletum fulvae		Fresh grass marsh [3.A.(3)e.]	Arctophila fulva (Batten 1977; Bergman et al. 1977; Britton 1967; Childs 1969; Clebsch 1957; Hultén 1966; Komárková and Webber 1978; Murray 1974; Potter 1972; Racine and Anderson 1979; Rausch and Rausch 1968; Streveler et al. 1973; Webber et al. 1978; Wiggins and Thomas 1962)
Dry Rhizocarpon geographicum, Cetraria nigricans lichen barren		Rock desert		Lichen-moss barrens			Umbilicarietum-pensylvanico-carolinianae			Crustose lichen [3.C.(2)a.]	Umbilicaria spp.-Rhizocarpon spp. (Anderson 1974; Hanson 1953; Kessel and Schaller 1960; Klein 1958; Pegau 1968; Rausch and Rausch 1968; Webber et al. 1978)
Dry Festuca rubra, Poa glauca grass barren				Grassland type						Midgrass herb [3.A.(1)d.]

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