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Base on RS and GIS, 1993, 2000, 2007 and 2009 TM images of Tangshan Nanhu Wetland are taken as the data source, Landscape characteristics and change are studied. The knowledge discovery and feature extraction on the basis of traditional classification method of the remote sensing pictures are discussed. Multi-level classification method is used in monitoring of Tangshan Nanhu Wetland area land cover. This method is superior to the classifying device of single routine. In this paper, Tangshan Nanhu Wetland Landscape change is obtained by using multi-level classification method dealing with Tangshan Nanhu Wetland region remote sensing images. The study shows that with the rapid economic development and urbanization, great changes of land use have taken place in Nanhu Wetland area during 1993–2009. |
