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Influence of white spruce trees on permafrost-table microtopography, Mackenzie River Delta



Influence of white spruce trees on permafrost-table microtopography, Mackenzie River Delta



Canadian Journal of Earth Sciences 12(2): 263-272



Localised depression of the permafrost table and increased soil thickness below spruce trees appeared to be due to: (1) interception of 25% of rainfall by individual spruce crowns, causing a decrease in soil moisture below the tree; (2) accelerated sediment deposition during spring floods providing a locally better drained site; (3) retardation of moss growth around tree stems due to increased sediment deposition and (4) more solar radiation interception by the low-albedo slopes of alluvial deposits surrounding tree stems.

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Accession: 000118451

Download citation: RISBibTeXText

DOI: 10.1139/e75-023



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