欢迎来到天天文库
浏览记录
ID:36454928
大小:2.55 MB
页数:72页
时间:2019-05-10
《基于GIS和SD模型的桂西北石山区生态承载力研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
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
此文档下载收益归作者所有