基于GIS和SD模型的桂西北石山区生态承载力研究

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1、湖南师范大学硕士学位论文基于GIS和SD模型的桂西北石山区生态承载力研究姓名：杨勋林申请学位级别：硕士专业：自然地理学指导教师：李晓青;王克林20030401ABSTRACTConflictsamongpopulation，resourcesandecologicalenvironmentbecomemoreandmoreseverewiththeincreasingofpopulationandwiththedevelopmentofsocialeconomy，andtheproblemsresultedfromlackofresource

2、sanddepravationofecosystemenvironmenthavebeendrawingcloseattentionallovertheworld．Usingecologicalcarryingcapacitytheorytostudytheinterrelationshipamongregionresource，ecologicalenvironment，increasingofpopulationandsocialeconomyisthemostcommonlyadoptedmethodinecological，geogr

3、aphicalandeconomicresearchnowadays．Theapplicationofsomenewrationresearchmethods，suchasthesystemdynamicsmodel(SD．)，andsomenewtechnologies，suchasgeographicalinformationsystem(GIS)isoneofthemostimportantdevelopingtendenciesinthestudiesofecologicalcarryingcapacity．Applyingthege

4、ographicalinformationsystemtechniquestothesystemdynamicsmodel，accordingtothedataobtainedbyremotesensingandinvestigatingonthespot，thisthesistakesasitsresearchobjectkarstregioninnorthwestofGuangxiprovince，aweakareainecosystemenvironment，toevaluatethecurrentecologicalcarryingc

5、apacityofthenorthwestofGuangxiprovinceandtopredictthetrendofresourcescarryingcapacityandthecarryingpressureofecosystemsystemin2000—2010yearsunderthedifferentincreasingprojectsoflifeconsume．Theauthorconfineshimselftothestudiesoftheagriculturalecosystemofthekarstregioninnorth

6、westofGuangxiprovincebecauseofthelimitsindataandtechniques．Theauthorwritesthepapertosuggestthegovernmentforsettingupthekarstregionalecosystemenvironmentalprotectionmeasure，proceedingtheecosystemenvironmentimmigrate，adjustingagricultureindustrialstructure，promotingthekarstre

7、gionalecosystemenvironmentaleconomicdevelopment，andchangingthepovertyactuality,realizingthekarstregionalsustainabledevelopment．TheresearchevaluatesthepresentcarryingcapacityofecosystemofthekarstregioninnorthwestofGuangxiprovinceinviewofecosystemflexibilityindexnumber,resour

8、cescarryingcapacityandcarryingpressure．ResearchresultindicatesthatthereiSlOWecolog