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Details van artikel 237 van 250 gevonden artikelen
| Titel: |
The use of Landsat mss imagery to determine plant characteristics and community spectral separability from sub-tropical to arid zones in northern Australia |
| Auteur: |
Matheson, Wilma |
| Verschenen in: |
Geocarto international |
| Paginering: | Jaargang 9 (1994) nr. 2 pagina's 5-13 |
| Jaar: |
1994-06 |
| Inhoud: |
Plant communities along a vegetation gradient comprising sub-tropical, semi-arid and arid regions differed in terms of their green canopy cover, percent count (number of species present) and species richness per survey site. Analysis of green vegetation cover relative to background on Landsat MSS resulted in least distinctiveness for the subtropical region, where higher green vegetation percentages and a senesced herbaceous layer tended to homogenise the mostly near-infrared reflective response. In the arid zone, plant spectral distinctiveness was minimised in areas of stony or bedrock cover but enhanced due to darkening in the dune areas despite low cover percentages. Due to vegetation darkening in the semi-arid area, the spectral separability of green plant communities was enhanced within the 25% cover range. This range corresponded mostly to upper threshold levels of darkened vegetation prevalent globally in semi-arid rangelands and in sandy areas of arid environments. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 237 van 250 gevonden artikelen
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