DETERMINING FOREST SPECIES COMPOSITION USING HIGH-SPECTRAL-RESOLUTIONREMOTE-SENSING DATA

Airborne hyperspectral data were analyzed for the classification of 11 forest cover types, including pure and mixed stands of deciduous and conifer species. Selected bands from first difference reflectance spec tra were used to determine cover type at the Harvard Forest using a ma ximum likelihood algorithm assigning all pixels in the image into one of the 11 categories. This approach combines species specific chemical characteristics and previously derived relationships between hyperspe ctral data and foliar chemistry. Field data utilized for validation of the classification included both a stand-level survey of stem diamete r, and field measurements of plot level foliar biomass. A random selec tion of validation pixels yielded an overall classification accuracy o f 75%. (C)Elsevier Science Inc., 1998