Abstract
Selecting a typical karst rocky mountain area as a study case located in southeast of Yunnan province, getting Landsat5 TM digital images detected from two different time point of 1990 and 2007 year, karst rocky desertification condition is monitored and change analysis is completed by use of remote sensing process and GIS spatial analysis technique integrated land use diagnoses. The results are shown that: the dynamic changes of the karst rocky desertification amount were not distinct from 1990 to 2007, but the amount of the different degree types of karst rocky desertification changes relative obvious, in general karst rocky desertification condition presents a severity trend. The study also demonstrates that the integrated technique application by remote sensing, GIS and land use diagnoses can get the past back data and landscape pattern with location and quantity. This is help to understand deeply the development characteristic of karst rocky desertification change, and be benefit to provide decision-making support for karst rocky desertification mountain land use and management.
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