Quali, a Taiga Snow Formation of Ecological Importance

Pruitt, William O.

doi:10.2307/1929988

Cited by 14 publications

(10 citation statements)

References 4 publications

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“…general, greater coniferous cover reduces api thickness by providing greater snow interception and qali (Pruitt, 1957) formation. It reduces the surface hardness through wind interference and shading of the forest floor (Bunnell et ai, 1985).…”

Section: Canopy (Pca Axis 1)mentioning

confidence: 95%

Canopy, snow, and lichens on woodland caribou range in southeastern Manitoba

Schaefer¹

1996

Ran

110

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I examined the relationships among snow cover (api), lichen abundance, and canopy composition on the range of the Aikens Lake population of woodland caribou (Rangifer tarandus caribou) in southeastern Manitoba. Percent cover of forage lichens (Cladina spp.) was positively correlated with maximum total thickness and with maximum vertical hardness of api. Mixed communities of trembling aspen (Populus tremuloides), spruce (Picea spp.), and balsam fir (Abies balsamea) showed the most favourable nival conditions for caribou but had low lichen abundance; those dominated by jack pine (Pinus banksiana) were the converse. The results suggest an energetic compromise for woodland caribou when foraging for terrestrial lichens. During winter, caribou exhibited significant selection for jack pine communities whereas mixed communities were avoided

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Section: Canopy (Pca Axis 1)mentioning

confidence: 95%

Canopy, snow, and lichens on woodland caribou range in southeastern Manitoba

Schaefer¹

1996

Ran

110

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“…Familiarity with these words exposes us to a whole new world of snow. The participants in the Scandinavian-Canadian Field Workshop on Rangifer-Snow Ecology (Pruitt 1971) resolved "…to assemble all known snow terms in all northern languages and to illustrate each term with a photograph or accurate drawing. We believe that publication of such a lexicon would materially advance the study of boreal ecology.…”

Section: Terminologymentioning

confidence: 99%

“…Taiga snow occurs in two phases: api [ah-PEE] or snow on the ground and qali [KAH-lee] or the snow on the trees (Pruitt 1958). In temperate regions qali is of only transitory aesthetic importance or when determining total water content.…”

Section: Qalimentioning

confidence: 99%

Why and How to Study a Snowcover

Pruitt

2005

Can Field Nat

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“…The slight (not significant. P = 0.997) postfire increase in snowpack depth in the postfire burned forest could reflect the greater potential for snow to pass through the canopy (composed of burned spars) to settle onto the snow pack on the ground (api; sensu Pruitt. 1958).…”

Section: Snowpack Depth Prefire: Postfirementioning

confidence: 99%

“…The forest canopy in this subarctic stand was open and the development of qamaniq (Pruitt, 1958) was limited (Fig. 6).…”

Section: Snowpack Heat Transfer Coefficient Prefire: Postfirementioning

confidence: 99%

Snowpack Characteristics following Wildfire on a Simulated Transport Corridor and Adjacent Subarctic Forest, Tulita, N.W.T., Canada

Kershaw

2001

Arctic, Antarctic, and Alpine Research

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A simulated transport corridor research site established in a permafrost-affected upland black spruce forest in 1984 was burned by a wildfire in 1995. A data set consisting of four midwinter snow surveys conducted prior to the fire was supplemented by two postfire surveys (including a new, unburned forest control). Mean daily winter winds increased significantly on the cleared rights-of-way/ simulated pipeline trench (ROW/trench). Increased winds were attributed to postfire reductions in stem density and surface roughness, which offered less resistance to the wind. Maximum winter winds were not significantly greater at 1.5 m on the postfire ROW/trench where the postfire modification of the forest reduced funnelling and acceleration of winds along the cleared ROW/trench. ROW/ trench snowpack depth increased and water equivalence declined after the fire, except in leading-edge forest sites where the reverse occurred. Depth and water equivalence changes resulted from the altered wind regime, where reduction in effective wind erosion on ROW/trench locations left more snow in these areas and reduced the amount available for deposition in leading-edge forest sites. The postfire snowpack was generally less dense on the anthropogenic disturbances, and with greater insulation potential, less heat loss should occur through the snowpack. The postfire forest snowpack was unchanged in comparison to prefire characteristics which suggests that thaw season conditions have the greatest effect on active layer thickening and surface subsidence following wildfire.

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Quali, a Taiga Snow Formation of Ecological Importance

Cited by 14 publications

References 4 publications

Canopy, snow, and lichens on woodland caribou range in southeastern Manitoba

Canopy, snow, and lichens on woodland caribou range in southeastern Manitoba

Why and How to Study a Snowcover

Snowpack Characteristics following Wildfire on a Simulated Transport Corridor and Adjacent Subarctic Forest, Tulita, N.W.T., Canada

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