Table 3.

Net change in land cover types to result from oil sands mining reclamation based on baseline reports and closure plans for the Horizon, Jackpine–Phase 1, Kearl, and Muskeg mines

Net change
DescriptionTotal pre (ha)Total post (ha)(ha)(%)
Upland forest39,11454,58715,47340
Meadow10−1−100
Shrubland52482−442−84
Bog5,1791,320−3,859−75
Fen13,2384,683−8,555−65
Graminoid marsh8782,5951,717196
Swamp13,0549,795−3,259−25
Shallow open water45694−362−79
Lake2,0595,7023,643177
River171152−19−11
Riparian shrubland12,3272,326232,600
Littoral zone0230230Infinite
Clearcut73098−632−87
Disturbance6,658395−6,263−94
Peatland subtotal (bog and fen)18,4176,003−12,414−67
Wetland subtotal (peatland, graminoid marsh, swamp, shallow open water, riparian shrubland, and littoral zone)32,80621,045−11,761−36
Total82,06082,06000
  • This constitutes 42% of the total area approved for mining as of March 2011, but is a representative sample of the region in terms of east and west bank distribution.