Land Cover/ Use Changes Detection by Object-Oriented Processing Satellite Image Dates (Case Study: Tabriz County)

Over time, patterns of land Use changes and consequently the land use are essentially altered. Thus for efficient using of capabilities of natural resources, finding detailed information about potential of land uses is necessary. Nowadays, remote sensing technology as a valuable approach to identify natural resources, particularly in the process of preparing land use plans in different regions of the world are documented scientifically. On this basis, for studying the land use changes of Tabriz county during 2010, 2007, 2001, 1989; TM 1989, ETM 2001&+2010, IRS 2007 images were processed and classified by an object-oriented technique. Then, bypre-classification comparing method, all changes were displayed during time period. The results show that the rate of changes over periods of 1989-2001, 2001-2007, 2007-2010, 1989-2010 are about 60.80, 66.30, 56.80, 56.40 percent respectively, so that vegetation cover and the water surfaces had the maximum changes. Meanwhile the most using conversion had happened on built-up lands