Characterizing the complexity of landscape boundaries by remote sensing

Jean-Paul Metzger (1) , Etienne Muller (1)

1 CNRS - Centre National de la Recherche Scientifique

This paper presents a method for characterizing the complexity of landscape boundaries by remote sensing. This characterization is supported by a new boundary typology, that takes into account points where three or more landcovers converge (i.e., convergency points or coverts). Landscape boundary richness and diversity indices were proposed and calculated over 19 landscapes in South-East Brazil. Results showed that landscape boundaries, especially convergency points, provided an enrichment in landscape pattern analysis. Landcover boundary diversities were significantly related to landcover shape: elongated riparian units had the highest values for boundary diversity and coverts proportion indices. On the other hand, landscape analysis showed that indices of shape, richness, diversity and coverts proportion provided an additional evaluation of landcover spatial distribution within the landscape.

Mots clés: Boundary; Covert; Landscape indices; Landscape physiognomy; Fragmentation; Diversity; Remote sensing

Domaines: Biodiversité et Ecologie

Jean-Paul Metzger, Etienne Muller. Characterizing the complexity of landscape boundaries by remote sensing. Landscape Ecology, 1996, 11 (2), pp.65-77. ⟨10.1007/BF02093740⟩. ⟨hal-03607951⟩