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2、l南鉀軾大尊碩士學位論文洞庭湖區(qū)濕地生態(tài)脆弱性評價及其恢復與重建研究AssessmentofEcologicalVulnerabilityofWetlandofDongtinghuLakeAreaandaStudyonitsRrestorationandReconstruction學科專業(yè)自然地理學學位類型回科學學位口專業(yè)學位研究生姓名沈彥導師姓名、職稱朱翔教授論文編號湖南師范大學學位評定委員會辦公室二零零六年五月濕地生態(tài)脆弱性的概念進行界定,分析了濕地退化的成因,最后運用層次分析法(AHP)和綜合指數(shù)法列洞庭湖區(qū)濕地生態(tài)環(huán)境脆弱度進行了整
3、體與分區(qū)的定量評價,從而深入分析了洞庭湖區(qū)濕地生態(tài)脆弱性的特征,并列舉了國內(nèi)兩處典型湖泊濕地生態(tài)恢復示范區(qū),為洞庭湖濕地生態(tài)恢復提供借鑒。第三部分包括第五章和第六章。針對洞庭湖區(qū)濕地生態(tài)退化的嚴峻形勢,首先在恢復生態(tài)學的理論指導下,提出了洞庭湖區(qū)濕地生態(tài)恢復的目的、原則、意義以及對策與設計。最后還對濕地,E態(tài)恢復可能面臨的問題進行了闡述,以推動洞庭湖區(qū)濕地生態(tài)恢復工程的順利實施。關鍵詞:洞庭湖區(qū),濕地生態(tài),生態(tài)脆弱性,退化,恢復與重建ⅡAbstractTilestndyofthetheoryofdegenerationecosystemrestora
4、ti011andpracticeisthechieffocusofecology,geographyandregionalsciences.Thetypicalregionandtypeofdegenerationecosystemwereprobedtoapproachtheoreticrelevantresearchpracticeimplication.ItprovidesUSwithresourcesofwater,biology,energy,transportionandtraveling,isoneofthemostproductive
5、ecosystemontheearth,andhavegiantenvironmentalfunctionsandecologicalbenefitsinmanyaspects,suchasadjustingclimate,self-controllingwatersource,storingfloodwaterforuseinthefuture,avoidingdrought,purifyingwaterquality,protectingbiodiversity.Atpresent,ecosystemsofwetlandwereregardeda
6、soneofthemostfragileecosystemsontheearth.Itdegeneratedindifferentdegree,whichInfluencedtheprotectionandtileuseofwetlandresourcesunderthenaturaldisturbanceandartificialdisturbance.Resuminggoodstructureandfuntionofdegenerationecosystemandrebuildingdegenerationecosystemwereimporta
7、nttowetlandprotectionandregionalsustainabledevelopment.Thepapercombineswiththe“PolderLeveling,WetlandRestoration”projectandeconomicconstructioninmiddlereachesofYangtzeriver,andselectsⅡ1ewetlandecosystemofDongtiugLakeareaasresearcbobjectionOnthebaseoftheresearchachievementoffore
8、fathers,inordertorehabilitatedegradedwetlandecosystem,andaimingatprovidingscientificinstructionfortheDongtingLakeareaandotherswetlandecosystem’Shealthydevelopmentandmaintenanceitsecologicalfimctionpersistenly,thisgivesoutseveralmeasurestobetaken.Therearethreepartsinthepaper.The
9、contentinthefirstpartistheoeticalreseach,whichincludes