Mix or influence of vegetation signal on soil information decrease the performance of soil identification and mapping. This paper describes a simple transformation to eliminate the mix or influence of vegetation reflectance on soil reflectance, and to enhance the soil information.

The usefulness of the transformation were investigated and shown by the channel selection based upon the statistical distance between soil classes and by multispectral pattern recognition. The simple transformation was considered to sensitive to the degree of the soil organic matter contents.

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