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摘    要:Chinahasmadeamasterplantofenceallof48millionha.ofmountainareasandsandyareaswhicharesuitableforreafforestatingandplantinginthecoming12years.Accordingtothemasterplan,5.3millionha.to6.6millionha.ofmountainandhillyareaswillbereafforestatedorrevegetatedin1999.ItisestimatedthatthemainrivercoursesattheupperreachesoftheYangtzeRiver,theYellowRiver,theZhujiangRiver,theHuaiheRiver,theSonghuajiangRiver,theHaiheRiver,theLiaoheRiverandtheirbranchestributariesaredesignedtobeplanted.Asthefirststep,mount…

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