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| Titel |
Energy dissipation of rockfalls by coppice structures |
| VerfasserIn |
G. Ciabocco, L. Boccia, M. N. Ripa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 3 ; Nr. 9, no. 3 (2009-06-26), S.993-1001 |
| Datensatznummer |
250006805
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| Publikation (Nr.) |
 copernicus.org/nhess-9-993-2009.pdf |
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| Zusammenfassung |
The objective of this work is to develop elements to improve understanding
of the behaviour of a coppice in relation to the phenomenon of falling
boulders. The first section proposes an amendment to the equation for
calculating the index which describes the probability of impact between a
rock and plants in managed coppice forests. A study was carried out, using
models to calculate the kinetic energy of a falling boulder along a slope
considering the kinetic energy dissipated during the impact with the
structure of forest plants managed by coppice. The output of the simulation
models were then compared with the real dynamics of falling boulders in
field tests using digital video.
It emerged from an analysis of the results of this comparison that a
modification to the 1989 Gsteiger equation was required, in order to
calculate the "Average Distance between Contacts" (ADC). To this purpose,
the concept of "Structure of Interception", proposed in this
paper, was developed, valid as a first approach for describing the
differences in the spatial distribution of stems between coppice and forest.
This study also aims to provide suggestions for forestry management, in
order to maintain or increase the protective capacity of a coppice managed
with conventional techniques for the area studied, modifying the
dendrometric characteristics. |
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