. Ecology of the aspen parkland of western Canada in relation to land use . Figure 42. A slough full of water after being dry for a number of years, with a resultant invasion of willow and aspen. The invading plants have been killed by flooding, and cat- tails have commenced to seed into denuded areas. Figure 43. A slough in an advanced stage of succession. Surface water has been practically eliminated through filling by accumulated vegetative debris. Willow and aspen have closed in so that only a small area supporting a dense stand of sedge, Carex spp., and a few water par- snip, Slum suave,
. Ecology of the aspen parkland of western Canada in relation to land use . Figure 42. A slough full of water after being dry for a number of years, with a resultant invasion of willow and aspen. The invading plants have been killed by flooding, and cat- tails have commenced to seed into denuded areas. Figure 43. A slough in an advanced stage of succession. Surface water has been practically eliminated through filling by accumulated vegetative debris. Willow and aspen have closed in so that only a small area supporting a dense stand of sedge, Carex spp., and a few water par- snip, Slum suave, remains. Figure 44. Overgrazed pasture invaded by snowberry. 121
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Keywords: ., bookcentury1900, booksubjectecology, booksubjectnaturalhistory
