Abstract
Landsat Thematic Mapper (TM) data, collected in May 1984 and 1985, were used to estimate and map the soil organic matter contents. The organic matter contents of 30 samples of surface soil, plowing in the depth of 25 cm, were used for linear regression analysis with TM spectral data. Band 3 (630-690 nm) could be used effectively for estimating the soil organic matter contents. Therefore, the next equation was obtained and used for mapping the organic matter contents of upland soils : log Y=1.6112-0.0120 X, where Y is soil organic matter contents and X is computer compatible tape count of band 3 in 1985.
