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| Titel |
Spatial dynamics of Fabiana imbricata shrublands in northwestern Patagonia in relation to natural fires |
| VerfasserIn |
F. J. Oddi, N. Dudinszky, L. Ghermandi |
| 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 ; 10, no. 5 ; Nr. 10, no. 5 (2010-05-03), S.957-966 |
| Datensatznummer |
250008146
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| Publikation (Nr.) |
 copernicus.org/nhess-10-957-2010.pdf |
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| Zusammenfassung |
| Fire is a critical disturbance in the structuring and functioning of
most Mediterranean ecosystems. In northwestern Patagonia, vegetation
patterns are strongly influenced by fire and environmental
heterogeneity. Dendroecology, together with satellite imagery and
GIS, have been demonstrated to be useful tools in studies that
relate to fire effects with patches, patterns and species dynamics
at landscape scale. Such studies can be approached from landscape
ecology, which has evolved in the last years supported by the
development of remote sensing and GIS technologies. This study
evaluates the spatial dynamic of F. imbricata in response
to fire using remote sensing, GIS and dendrochronology techniques,
at landscape scale. Two sites were evaluated and one of them was
affected by fire in the year 1999. The digital processing images
(using the NBR spectral index) and the dendroecological analysis
verified this. A fire, occurring in 1978, was also detected by the
analysis of F. imbricata growth rings. The relation between
F. imbricata shrubland dynamics and spatial configuration
with fire, land topography and hydrography was established in the
study area. |
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