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I.I~crIOXNOwadays,theremotesensingtechniqueshavebeenappliedinmeteorology,oceanography,hydrologyandsomeotherscientificfields,andbecomeauSefulmethodformonitoricsavastregion.Monitoringwithsatelliteremotesensinghas~advantageSincollectingdatacontinuously,regularlyandrepeatedlyinalargearea,inparticularinavastwetlandwherethefieldinvestigationisverydifficult.Therefore,remotesensingwithsatellitedataisthemostsuitablemethodforthesurveyinthiskindofregion.Untilthecoddleofthe20thcentury,wetlandhassometim… 相似文献
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