2、ialurban-ruraldualstructure.Emptyvillageshavehugelyobstructedthesustainabledevelopmentofruraleconomicsandsocietyandatthesametimehaveresultedinlandentaldeterioration.Thethesisfirstlyanalyzestheformationmechanismofemptyvillagesandthenbringsonthecorrespondingmeasurements. Ke