CitationWeiss, Daniel J.; Walsh, Stephen J.; McKnight, Sean A.; & Hammer, Evan S. (2009). Environmental Controls on Turf-Banked Terraces.. Butler, David R.; Malanson, George P.; Walsh, Stephen J.; & Fagre, Daniel B. (Eds.) (pp. 85-106). Amsterdam: Elsevier.
AbstractTurf-banked terraces in the alpine tundra of Glacier National Park, Montana, are typically characterized by alternating stripes of flat, stone-covered treads or steps and angled risers covered by alpine tundra vegetation. Previous research has suggested that the presence of turf-banked terraces is controlled by local environmental settings, particularly, topographic conditions. In this research, regression analysis is used to assess the correlations between turf-banked terrace characteristics and a set of hypothesized environmental controls. Measures of turf-banked terraces include the widths and standard deviations of treads, risers, and all stripes measured at 55 areally distributed 50-m field transects; the ratio of riser width to tread width; and a set of four one-dimensional pattern metrics that assess the spatial structure of the tread/riser sequences. These measures were derived using a run-length approach for field transects distributed in basins located throughout the eastern side of the Continental Divide. The environmental variables, generated from a 10-m spatial resolution digital elevation model (DEM), include elevation, slope angle, slope aspect, slope curvature, and soil moisture potential. Our results show that several turf-banked terrace characteristics are significantly correlated with individual environmental variables; stronger relationships are found when turf-banked terrace characteristics are related to transformed (i.e., principal components analysis) environmental variables using multiple regression analysis.
Reference TypeBook Section
Series TitleDevelopments in Earth Surface Processes
Author(s)Weiss, Daniel J.
Walsh, Stephen J.
McKnight, Sean A.
Hammer, Evan S.