Land resources information acquisition based on multi-temporal TM images

The paper selected Wuerhe district area as an example, and introduced the use of TM from multi-temporal remote sensing images in land resource information. We take 4 stages TM remote sensing image (1976, 1989, 2000, 2009) as the data source, using RS, GIS technology, analyzed the study area land use characteristics of temporal and spatial variation from 1976 to 2009. The research shows that: from the nineteen seventies up to now, Wuerhe district area forest land, grassland and other land use proportion is gradually reduced, cultivated land and industrial land proportion gradually increased, the increased amount of residents and roads is very small, the waters area changes greatly.