REN R366 Lecture Notes - Lecture 18: Frost Heaving, Steam-Assisted Gravity Drainage, Sphagnum
11 Mar 2017
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Free lecture at museum april 8 on bryophytes! Disturbance in drilling/well-pad creation is pretty severe: area is totally denuded, corridors cleared and maintained so machinery can travel from one to the other. Large proportion of canadian landscape (1/3 of global peatlands are here!) Influence beyond boundaries (water flow: support numerous species. Important sink for ghgs (30% of total global soil carbon pools: a concern with warming temperatures. Fires and warm/dry climates could result in great carbon release further warming (+ feedback loop) Fens: groundwater in contact with mineral soils higher mineral content, more diverse conditions from fen to fen, rich fens and poor fens. Bogs: surface water and nutrients derived from precipitation (no contact with groundwater, sphagnum dominated, all bogs have developed from fens. Richard caners effects of in situ oil sands exploration on wooded fens. Research directions: vegetation succession of wooded fens after ose (caners and lieffers 2014)
