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- W174490537 abstract "AbstractThe main goal of this study is to examine mechanisms controlling valley asymmetry development at two locations with distinctly differing environmental parameters and to develop a model for the two locations. As a secondary aim the knowledge gained from the main goal is thought to help understand the very uncertain glacial past of the high Drakensberg as it can be compared to the much accepted glacial history of Abisko.Parameters studied were slope angle, landforms, vegetation cover, block abundance, available moisture, bedrock characteristics, temperature and soil moisture. Some parameters were not studied in the field due to time issues; these were instead gathered by literature study. These parameters were structural weakness, soil depth and glaciation.Results show that the environmental differences noted between each sites north and south facing slope are clear. The side facing the equator is at both locations less steep, warmer and has more diverse vegetation. Temperature development with elevation was statistically analyzed and showed no correlation or not statistically significant correlation on all slopes. The expectation the south facing side of the Sani Pass transect showed where a statistically significant decline in temperature with elevation.The main conclusion drawn is that valley asymmetry development at both locations is controlled by the increased intensity of denudational processes on the side facing the equator as a result of the larger input of radiative energy there. It is also suggested that internal feedback mechanisms are related to the hastening of asymmetric development.The main constraint of the study is that not large enough data sets were gathered and that some important parameters like soil depth could not be included in the study. More research is needed in the field of vegetation’s role in interacting with physical processes on mountain slopes. The role of vegetation as an enhancer or retarder of geomorphic processes is not sufficiently understood." @default.
- W174490537 created "2016-06-24" @default.
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- W174490537 date "2012-01-01" @default.
- W174490537 modified "2023-09-26" @default.
- W174490537 title "Mechanisms controlling valley asymmetry development at Abisko, northern Sweden and Sani Pass, southern Africa" @default.
- W174490537 hasPublicationYear "2012" @default.
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