GEOG 3110 Lecture Notes - Lecture 13: Climax Community, Geomorphology, Dune
17 Feb 2016
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Document Summary
Material from lectures and readings basic concepts and definitions for succession. Sequential process change in communities caused by facilitation. Leads to a stable climax community which is determined by climate. Cowles (1899), downing (1922): cottonwoods establish in depression of wet sand, close to the water table, not on dunes initiated by grasses act as sand traps and grow vertically with continues sand deposition. Domes creeping annuals, bunchgrass, cottonwood trees, pines, oaks. Cowles" original writings and the conclusions of the present study are both in disagreement with the distortion of the different dune successions into a single linear sequence leading from pine and black oak to oak hickory and. Looked at mrytle lake mn took sediment cores out of lake and adjacent land to examine landscape development. Lake has lifted up, does not get any smaller. no evidence that lake is infilling no evidence of succession towards a stable climate.
