Evaluation of ERTS Imagery for Vegetation Interpretation in British Columbia

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Abstract
ERTS imagery has provided a means of surveying the natural resources on the earth’s surface by multiband, small-scale sequential imagery. This is a new tool for taking an inventory of natural resources. It requires evaluation for different purposes. The imagery was evaluated for distinguishing vegetation communities. Nonforested land could be easily separated from forest land and some distinctions could be made within these broad categories. Cut-over forest land, some meadows, grassland and highly developed urban land (towns) could be separated within the nonforested land. Differently aged forest stands, either from fire or reforestation, could be distinguished within the forested areas. Tree species could not be separated except through knowledge of successional patterns in some areas. Major forest types were generally not separable. The results and conclusions are tentative because equipment for image analysis was not available and only two sets of imagery of study areas were available: one in mid-May and one in mid-August.

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