University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Selected Publication:
Procter, E; Stoffel, M; Schneuwly-Bollschweiler, M; Neumann, M.
(2012):
Exploring debris-flow history and process dynamics using an integrative approach on a dolomitic cone in western Austria
EARTH SURF PROC LAND. 2012; 37(9): 913-922.
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- Abstract:
- The evolution of a debris-flow cone depends on a multitude of factors in the hydrogeomorphic system. Investigations of debris-flow history and cone dynamics in highly active catchments therefore require an integrative approach with a temporal and spatial resolution appropriate for the goals of the study. We present the use of an orthophoto time series to augment standard dendrogeomorphic techniques to describe the spatio-temporal dynamics of debris flows on a highly active cone in the western Austrian Alps. Analysis of seven orthophotos since 1951 revealed a migration of active deposition areas with a resulting severe loss of forest cover (> 80%) and a mean tree loss per year of 10.4 (range 1.3-16.6 trees per year). Analysis of 193 Pinus mugo ssp. uncinata trees allowed the identification of 161 growth disturbances corresponding to 16 debris flows since 1839 and an average decadal frequency of 0.9 events. As a result of the severe loss of forest cover, we speculate that?
- Authors BOKU Wien:
- Neumann Mathias
- Procter Emily
- Find related publications in this database (Keywords)
- debris flow
- dendrogeomorphology
- tree rings
- orthophoto
- Austrian Alps
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