Cessation of ice-wedge development during the 20th century in spruce forests of eastern Mackenzie Delta, Northwest Territories, Canada

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Kokelj, S V, Pisaric, M FJ, Burn, C R
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 2007
• Subjects: Northwest Territories; Canada; Mackenzie Delta; Ice; permafrost; Subarctic; Tundra; wedge*
• Online Access: https://doi.org/10.1139/e07-035; http://www.nrcresearchpress.com/doi/pdf/10.1139/e07-035

Ice wedges are presently inactive in white spruce (Picea glauca) forests of eastern Mackenzie Delta as shown by the absence of vein ice above ice wedges, the maintenance of intact breaking cables, and the abundance of rootlets propagating across ridge–trough sequences. At spruce forest sites, near-s...