Redding2003121

Référence

Redding, T.E., Hope, G.D., Fortin, M.-J., Schmidt, M.G., Bailey, W.G. (2003) Spatial patterns of soil temperature and moisture across subalpine forest-clearcut edges in the southern interior of British Columbia. Canadian Journal of Soil Science, 83(1):121-130. (Scopus )

Résumé

To investigate if timber harvesting influences spatial patterns of soil microclimate, forest floor soil temperature and moisture were examined across forest-clearcut edges. Transects were sampled during the 2000 growing season across a 1-ha clearcut at a sub-alpine forest site in the southern interior of British Columbia, Canada. Forest floor temperature measurements were made twice, once under sunny and once under overcast conditions. Moisture status, measured under wet and dry conditions, was expressed as gravimetric and volumetric moisture content and matric potential. Wavelet analysis was used to detect and compare the location of edges in soil properties, and variance partitioning was used to examine the environmental and spatial sources of variability in temperature and moisture. Based on the wavelet analyses, the transition zone, in both temperature and moisture between forest and clearcut occurred at 7-15 m into the clearcut from the south edge and at 8-18 m into the forest from the north edge. Spatial patterns were consistent between clear and overcast conditions and wet and dry conditions. Distance from the edge was a minor source of spatial variability in temperature and moisture relative to the strong contrast between forest and clearcut conditions. The edge influences may have implications for nutrient cycling, plant available water and forest regeneration.

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@ARTICLE { Redding2003121,
    AUTHOR = { Redding, T.E. and Hope, G.D. and Fortin, M.-J. and Schmidt, M.G. and Bailey, W.G. },
    TITLE = { Spatial patterns of soil temperature and moisture across subalpine forest-clearcut edges in the southern interior of British Columbia },
    JOURNAL = { Canadian Journal of Soil Science },
    YEAR = { 2003 },
    VOLUME = { 83 },
    NUMBER = { 1 },
    PAGES = { 121-130 },
    NOTE = { cited By 56 },
    ABSTRACT = { To investigate if timber harvesting influences spatial patterns of soil microclimate, forest floor soil temperature and moisture were examined across forest-clearcut edges. Transects were sampled during the 2000 growing season across a 1-ha clearcut at a sub-alpine forest site in the southern interior of British Columbia, Canada. Forest floor temperature measurements were made twice, once under sunny and once under overcast conditions. Moisture status, measured under wet and dry conditions, was expressed as gravimetric and volumetric moisture content and matric potential. Wavelet analysis was used to detect and compare the location of edges in soil properties, and variance partitioning was used to examine the environmental and spatial sources of variability in temperature and moisture. Based on the wavelet analyses, the transition zone, in both temperature and moisture between forest and clearcut occurred at 7-15 m into the clearcut from the south edge and at 8-18 m into the forest from the north edge. Spatial patterns were consistent between clear and overcast conditions and wet and dry conditions. Distance from the edge was a minor source of spatial variability in temperature and moisture relative to the strong contrast between forest and clearcut conditions. The edge influences may have implications for nutrient cycling, plant available water and forest regeneration. },
    AFFILIATION = { Department of Geography, Simon Fraser University, Burnaby, BC V5A 1S6, Canada; British Columbia Ministry of Forests, Kamloops, BC V2C 2T7, Canada; Department of Zoology, University of Toronto, Toronto, Ont. M5S 3G5, Canada; Department of Biological Sciences, CW405 Biological Sciences Centre, University of Alberta, Edmonton, Alta. T6G 2E9, Canada },
    AUTHOR_KEYWORDS = { Edge effects; Forest floor; Soil moisture; Soil temperature; Subalpine forest; Wavelet analysis },
    DOCUMENT_TYPE = { Article },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-0038825146&partnerID=40&md5=89d127241773325ef14a048fd49ef078 },
}

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