Exercise 5 – Effect of Moisture Content on Thaw
Permafrost underlies a large proportion of peatlands in the Boreal and Taiga ecozones. Permafrost thaw occurs when the thickness of ground thawing in summer exceeds the thickness of ground refreezing during winter. Explain how a change in soil moisture content can result in permafrost thaw. Reading the article by Connon and others (2018) is helpful when completing this exercise.