'Quantifying the effects of forest canopy cover on net snow accumulation at a continental, mid-latitude site'

W. Veatch, Paul Brooks, J. R. Gustafson, N. P. Molotch

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Although many studies have investigated the effects of forest cover on streamflow and runoff, and several have examined the effects of canopy density on snowpack accumulation, the impacts of forest canopy density on spatial patterns of snowmelt input to catchments remain relatively underquantified. We performed an intensive snow depth and density survey during maximum accumulation in a mid-latitude montane environment in northern New Mexico, taking 900 snow depth measurements and excavating six snow pits across a continuum of canopy densities. Snow water equivalent (SWE) data are correlated with forest canopy density (R2 = 0·21, p < 0·0001), with maximum snow accumulation in forests with density between 25 and 40%. Forest edges are shown to be highly influential on patterns of snow depth, with unforested areas shaded by forest to their immediate south holding approximately 25% deeper snow than either large open areas or densely forested areas. This indicates that the combination of canopy influences on throughfall and snowpack shading are key processes underlying snow distribution in the high solar load environments typical of mountainous, mid-latitude areas. We further show that statistical models of snow distribution are improved with the addition of remotely sensed forest canopy information (R2 increased in 10 of 11 cases, deviance lowered in 9 of 11 cases), making these findings broadly relevant for improving estimation of water resources, predicting the ecohydrological implications of vegetation and climate change, and informing integrated forest and water resources management.

Original languageEnglish (US)
Pages (from-to)115-128
Number of pages14
JournalEcohydrology
Volume2
Issue number2
DOIs
StatePublished - Jun 2009

Fingerprint

snow accumulation
forest canopy
snow
canopy
snowpack
mountain environment
snow water equivalent
forest edge
throughfall
forest resource
shading
effect
forest cover
snowmelt
streamflow
forest resources
stream flow
statistical models
edge effects
water management

Keywords

  • Binary regression tree model
  • Forest density
  • Forest-snow interactions
  • Snow accumulation
  • Spatial distribution

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes
  • Ecology

Cite this

'Quantifying the effects of forest canopy cover on net snow accumulation at a continental, mid-latitude site'. / Veatch, W.; Brooks, Paul; Gustafson, J. R.; Molotch, N. P.

In: Ecohydrology, Vol. 2, No. 2, 06.2009, p. 115-128.

Research output: Contribution to journalArticle

Veatch, W. ; Brooks, Paul ; Gustafson, J. R. ; Molotch, N. P. / 'Quantifying the effects of forest canopy cover on net snow accumulation at a continental, mid-latitude site'. In: Ecohydrology. 2009 ; Vol. 2, No. 2. pp. 115-128.
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