Remote sensing the biochemical composition of a slash pine canopy
- Univ. of Southampton (United Kingdom). Dept. of Geography
- Scottish Natural Heritage, Edinburgh (United Kingdom)
- Inst. of Terrestrial Ecology, Huntingdon (United Kingdom). Environmental Information Centre
Information on the amount and spatial distribution of canopy biochemicals is of importance for the study of nutrient cycling, productivity, vegetation stress, and more recently, the driving of ecosystem simulation models over local to regional and eventually global scales. Airborne imaging spectrometers can record spatially-explicit information on the absorption features associated with foliar biochemicals in a forest canopy. The spectra of a single species pine canopy were recorded by the National Aeronautics and Space Administration`s (NASA) Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). Up to three wavebands were correlated to the concentration of chlorophyll, nitrogen, lignin, and cellulose (R{sub 2} = 0.96, 0.94, 0.93, and 0.61, respectively) and the content of these four biochemicals (R{sub 2} = 0.98, 0.91, 0.88, and 0.92, respectively). The AVIRIS data were used, for the first time to map the content of these biochemicals within the forest canopy and the accuracy was between 3--7% of the mean.
- OSTI ID:
- 464877
- Journal Information:
- IEEE Transactions on Geoscience and Remote Sensing, Journal Name: IEEE Transactions on Geoscience and Remote Sensing Journal Issue: 2 Vol. 35; ISSN IGRSD2; ISSN 0196-2892
- Country of Publication:
- United States
- Language:
- English
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