The spectral separability of twelve tropical rain-forest classes was examined in Landsat Thematic Mapper (TM∥ imagery of the Tambopata-Candamo Reserved Zone, south-east Peru. Spatial filtering of the imagery increased inter-class separability, although spectral overlap between the twelve forest classes was such that only four broad forest groups could be separated. These four spectrally separable forest groups appeared to differ in terms of structure and crown characteristics.
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