简介：Sand-duststormsaretheresultoftheintegratedinfluencesofclimate,geography,societyandhumanfactors.Atheoreticalframeworkisbuilttoexplainthecoherenceofpopulationgrowth,agriculturechangeandenvironmentaldegradation.Onthebasisoftheanalysisofthecausesofthesand-duststormintermsofhumanfactors,adiscussionwillbegiventoshowthatthesefactorsareinternallyconsistentwiththetheoreticalframework.Afterthat,itwilllookatChina'sAgenda21andtrytofindrelevantmeasurestoreducesuchlargesand-duststormshappeninginNorthwestChinaandeventuallymakethisareadevelopsustainably.
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