学科分类
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2 个结果
  • 简介:Basedontheconceptofecosystemcarryingcapacity,theindicatorsystemofquantitativeassessmentwassetup,whichconsistedofsupportindicatorsystemandpressureindicatorsystem.Andthefactoranalysismethodwasusedtoscreentheindicatorsystem.Differentfromthetraditionalindicatorweightdeterminationbasedontheabsolutevaluesofthecoefficientsofregressionequation,thesquaresoffactorloadingsintherotatedcomponentmatrixwereattemptedtodeterminetheweightsof40assessmentindicators.TheresultshowsthatecologicalsupportsystemandpressuresysteminBinhaiNewAreaarerelativelybalancedamongsixyears,andthedevelopinglevelofurbanecosystemisbasicallyhealthyonthewhole.However,duetocontinuouslyincreasingpressureoftheresourcesconsumptioncausedbytherapidgrowthofthesecondindustry,whichistheLeadingIndustryofBinhaiNewArea,theecosystemcarryingcapacityreachedtheminimumin2005.

  • 标签: 城市生态系统 评价指标体系 滨海新区 承载能力 天津 载运
  • 简介:Theecologicalcarryingcapacity,animportantindica-tortoevaluatethesustainabledevelopmentoftheecosystem,meansthepotentialabilityofthenaturalecosystemtocarryso-cioeconomicdevelopmentwhiletheecosystemishealthy.Itislimitedbythecarryingcapacityofnaturalresourcesandenviron-mentandtheelasticityoftheecosystem.Itwillbegreatlysignifi-canttostudytheecologicalcarryingcapacityofHainanProvince,thefirstecologicalprovinceadmittedbytheStateEnvironmentalProtectionAdministrationinChina.Notonlyisthenaturaleco-systemreflected,butalsotheeffectsofhumanactivitiesareem-phasizedbyintegratingtheecosystemhealthanalysisintotheecologicalcarryingcapacityresearch.Theresearchresults,usingtheFactorAnalysistoolsofsoftwareSPSS,indicatethattheeco-logicalcarryingcapacityofHainanProvincefluctuatedobviouslyfrom1996to2005.TheleveloftheecologicalcarryingcapacityofHainanProvincewasrelativelyhighin1996,andreachedintotroughfrom1997to1999.Ithassteadilyascendedtobeabovethemiddlelevelsincethe21stcentury.Theresultsalsoshowthatpolicyfactors,especiallytheimplementationofthe'EcologicalProvince'strategy,wereimportantdrivingforcestoinfluencetheecologicalcarryingcapacity.Withthepopulationrapidlyincreas-ing,thelandandwaterresourcespercapitahavedecreasedquickly.Theamountoftheecologicalcarryingcapacitywaspro-motedremarkablybysocioeconomicdevelopmentespeciallyeconomicgrowthandtechnologyapplications.Allofthesewillprovideusefulsuggestionstoestablishandenactregionaldevel-opmentpolicies,especiallyforprotectingandreconstructingtheecologyandenvironmentofHainanProvince.

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