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Remote Sensing Technology and Application  2002, Vol. 17 Issue (6): 293-298    DOI: 10.11873/j.issn.1004-0323.2002.6.293
    
Study on Interpretation and Cartography Technology of Desertification by TM Image
GAO Zhi-hai, WEI Huai-dong, DING Feng
(Gansu Desert Control Research Institute,Wuwei733000,China)
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Abstract  

:There are primary desertification types in Wuwei city that are wind erosion, water erosion and grassland retrogress at middle and low mountain. Through geometrical and projection system transform,standard false color composite, spatial enhance to image, link with land use/cover type, establish interpret symbol of TM image, and to extract information of desertification. It use different model piece of ARC/INFO software adequately, to interpret image, and compile and edit map, and statistic all kind of desertification information data. The results showed that desertification is very severe in Wuwei city, and total desertified lands have 217.07hm2, and occupy 83.33% of total area, among them most is Minqin county.

Key words:  Desertification      TM image      Interpret symbol      Information extracting     
Received:  18 October 2002      Published:  21 November 2011
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GAO Zhi-hai, WEI Huai-dong, DING Feng. Study on Interpretation and Cartography Technology of Desertification by TM Image. Remote Sensing Technology and Application, 2002, 17(6): 293-298.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2002.6.293     OR     http://www.rsta.ac.cn/EN/Y2002/V17/I6/293

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