Abstract
By using the technologies of remote sensing and geographical information system, use the source protection zones of Songhuaba 1982,1986,1992,1996,2001,2006,2010 LANDSAT TM remote sensing image for interpretation; analyze the reasons of land use change in this area. From the results: The water district garden and woodland are the main types of land. As the human, natural and other factors driving, unused land, residential areas, the grass have reduced. Some unreasonable land use structure in the protected areas, also cause the land use types are constantly changing and increasingly serious soil and water loss.
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