基于可拓物元-马尔科夫模型的省域生态环境质量动态评价与预测——以江西省为例
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2020-03-24 14:44:48
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中国生态农业学报2009年3月第17卷第2期ChineseJournalofEco-Agriculture,March2009,17(2):364-368DoI:10.3724/SP.J.1011.2009.00364基于可拓物元一马尔科夫模型的省域生态环境质量动态评价与预测水——以江西省为例刘耀彬1,2朱淑芬2(1.南昌大学中国中部经济发展研究中心南昌330047;2.南昌大学旅游规划与研究中心南昌330047)摘要在构建生态环境质量物元的特征指标体系基础上,基于可拓物元.马尔科夫模型提出了省域生态环境质量动态评价与预测的方法,并以江西省为例进行了应用研究。研究显示:可拓物元模型揭示2000~2005年间江西省生态环境质量整体上转好,但11个地区生态环境质量演化状况存在一定差异;而马尔科夫预测表明,按照现有的治理模式,5~10年后江西省生态环境质量整体上向“较好”方向演进。基于可拓物元法基础上的马尔科夫预测方法,可一定程度上对省域生态环境质量进行动态评价和趋势预测,但由于两模型本身假设的限制,在其具体应用中还需改进。关键词生态环境质量可拓物元模型马尔科夫模型评价与预测江西省中图分类号:F290;X171.1文献标识码:A文章编号:1671-3990(2009)02—0364.05Dynamicassessmentandforecastingofprovincialeco-environmentalqualityfrommatterelementmodelandMarkovchain-—·——-AcasestudyofJiangxiProvinceLIUYao—Binl一.ZHUShu.Fen2(1.CenterforChinaEconomicDevelopmentResearch,NanchangUniversity,Nanchang330047,China;2.CenterforTourismPlanning&DevelopmentResearch,NanchangUniversity,Nanchang330047,China)AbstractBydevelopingacharacteristicsindicatorsystemofeco—environmentalmatterelements,thispaperadvancedanassess—mentandforecastingmethodofprovincialeco·environmentalqualitybasedonthematterelementmodelandMarkovchain.ThesystemwasappliedtoJiangxiProvinceascasestudy.Theresultsshowthateco-environmentalqualityinJiangxiProvinceassimu—latedbymatterelementmodelhasbeen,ontheoverall,improvedfrom2000to2005.Thedegreeofimprovementis,however,dif-ferentforthe11districtsintheprovince.Ontheotherhand,Markovchainforecastshowsthattheeco—environmentalqualityseemsheadinginabetterevolutionaldirectioninthenext5-10years,providedcurrenteco—environmentgovernanceissustained.Theap—plicationeffectsimplythattheassessmentandforecastofthemodels,toacertainextent,reflectactualconditionsanddevelopment仃endsoftheprovincialeco—environmentalquality.However,becauseoflimitationsinthemodelassumptions,improvementsareneededinapplicationofthemodeltodifferentregionsindifferentphasesofeconomicdevelopment.KeywordsEco—environmentalquality,Matterelementmodel,Markovchain,Assessmentandforecast,JiangxiProvince(ReceivedJune22,2008;acceptedSept.28,2008)区域生态环境
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