内蒙古典型草原保护与利用景观生态安全格局研究——毛登牧场为例

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1、内蒙古大学硕士学位论文CaseStudyofProtectionandUtilizationofInnerongoliaTypicalSteppeBasedonEcologicalSecurityPatternsofLandscape--theExampleABSTRACTAsInnerMongoliatypicalsteppeisanimportantpartofthegrasslandsinnorthernChina,whichshouldersthedual—task：theprairieecosy

2、stemprotectionandthesustainabledevelopmentofrigionaleconomyinminorityareas．Aditionally,itisamultifunctionalresourcemanagementofNatureReserve，suchasecology,economyandculture，etc．Withthedevelopmentofsocietyandeconomy,theoveruseoflim“edgrasslandresourceshasc

3、ausedaseriesofseriousproblemsinprotectionandutilizationofthetypicalsteppe，twodirectconsequencesofwhicharetherecessionofecologicalshelterzoneanddegradationofgrassland．ThisstudyWasconductedinMaodengprairie(46。26'N，115。53q三)，situatedinXilinhaote，InnerMongoli

4、a，China．TheexperimentalplotsareselectedbythecriterionofrepresentingtypicalgrasslandofInnerMongoliawiththenaturalandsocialeconomiccharacteristics．BytheassistanceofGIS，RSandlandscapepaaemlllAM内蒙古大学硕士学位论文analysissoftwareFRAGSTATS，weused2000，2005and2010atotal

5、of3periodsofremotesensingdatafromMaodengprairieasthebasicsourceofinformationtoinvestigatetheprocessofitslandscapepatternchangeinrecent10years．Thelandscapepattemindex，dynamicoflandscapepattemanditspotentialregularpattemwerealsoanalyzedinthisstudy．Morever,c

6、ombinedwiththequestionnairerelatedtocognizanceofvariouspeoplefromdifferentregions，theresultsshowedthat：(1)Fromyearsof2000to2010，alltypesoflandscapeinMaodengprairiehadchangedtoinvariousdegree．Thegrasslandrepresentedadecreasingtrendtoacertainextentwhilecult

7、ivatedland，industrialandminingland，salinealkalilandincreasedtoadifferentextent；(2)Studyonlandscapeindexindicatedthat：patchnumber(NP)increasesalltheyears；patchdensity(PD)andthenumberoflandscapepatchfragmentationindex(FN)increasedaswell；averagepatcharea(MPS

8、)decreasedtothecontrary,whichmeansthatlandscapefragmentationisbecomingmoreserious．Atthesametime，landscapeshapeindex(LSI)，edgedensity(ED)isalsoincreased，representinganirregularlandscapeshape；(3)TheMarkovtransitionmat