A spectral geobotanical study at Natal Lake, northern Ontario

Abstract

Airborne multispectral scanner (MSS) digital data (3.8 m resolution) and MEIS II digital data (10 ;m resolution) have been used to investigate the effects of anomalous metal concentrations in the soil on the spectral reflectance of selected tree species. Analysis of on-site spectral measurements for 31 samples indicated that trees growing in soil with anomalously high concentrations of metals have higher reflectances at all wavelengths between 400 ;nm and 950 ;nm. However, statistical analysis of pixel values from individual airborne channels and some combinations/enhancements of channels revealed that detection of metal-stressed trees is generally not possible, except in some areas of glacio-lacustrine deposits.

Additional information

Notes on contributors

CAROL L. WAGNER

Present address: Land Use and Environmental Planning Department, Ontario Hydro, Toronto, Ontario MSG 1X6, Canada.