Eco-immigrationPolicyfortheDegradedRangelandandResponsesofHerdFamilyintheSourceRegionofYellowRiver___CaseStudyBasedonHouseholdInvestigationinMaduoCounty.pdf

,,2008Receivedin:2008-01;Revisedin:2008-:ThispaperissupportedbyKeyTechnologyofEcologicalSupervisionandAssessmentsforEcologyRecoveryinChi-na(2006BAC08B00),Program-EcologicalandFunctionalZonePlanning,WesternChinaActivitiesofChineseAcademyofSciences(KZCX2-XB2-06-03).Abouttheauthors:QingshuiLu(1972-),borninYuchengCounty,ShandongProvince,,-immigrationPolicyfortheDegradedRangelandandResponsesofHerdFamilyintheSourceRegionofYellowRiver———CaseStudyBasedonHouseholdInvestigationinMaduoCountyLUQingshui,ZHAOZhiping(,ChineseAcademyofSciences,Beijing100101;)Abstract:Undertheintegratedinfluencesofglobalclimatechangesandovergrazing,--immigrationandthereasonsfortheseresponses,theauthorsusedthreeperiodsMSSandTMimagesforrecent25yearsandinterviewsurveydataof144herdfamiliesinrecenttwoyears,gettingthefollowingresults:(1)therangelandhaddegradedextensivelyforrecent28years;and(2)p