Satellite Remote Sen singMon itor ing Techn iques on Ea st DongtinghuWetland
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1.
Reasearch Institute of Forest Resource Information Techniques, CAF,Beijing 100091, China
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2.
Beijing Forestry University,Beijing 100083, China
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3.
Resaserch Institute of Forestry, CAF,Beijing 100091, China
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Received Date:
2007-12-15
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Abstract
Using TM data and image p rocess software Erdas8. 7, the EastDongtinghu wetlandps area and distributioninformation were obtained by methods of Spectral Angle Mapper and man2machine interactive interp retation. Thedynamic changes of East Dongtinghu wetland area and its spatial distribution between 1987 and 2004 were studiedby the methods of images integration, interactive visua1 interp retation and classification results overlay. The resultsshowed that under the effects of vegetation succession and sediment deposition, the area of EastDongtinghu wetlandshrank continuously, which caused the regional degradation of wetland to varying degrees.
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