基于碳转移矩阵的土地利用碳排放效应研究.docx

基于碳转移矩阵的土地利用碳排放效应研究摘要：研究土地利用类型转变所引起的碳排放效应为调整土地利用结构实现区域土地低碳利用提供决策基础。运用ArcGIS软件对北部湾经济区1990、2000及2010年3个时期的遥感影像进行处理分析得出土地利用转移矩阵进而核算土地利用类型转变的碳排放转移矩阵。结果表明在整个研究期内因地类转移造成总净减少的碳排放量达987550.37t经研究发现碳汇地类及未利用地向碳源地类转变、碳源地类间由低排放向高排放地类的转变会导致区域碳排放量明显增加。碳源地类向碳汇地类的转变而减少的碳排放量为631690.25t碳减缓能力与转向地类的碳汇/碳排放能力有一定关系。针对新兴发展区域的土地利用趋势从低碳经济的发展角度提出了相应的优化措施。关键词：土地类型转变；转移矩阵；碳排放效应；广西北部湾经济区中图分类号：F301文献标识码：A文章编号：0439-8114（2016）11-2779-06DOI：10.14088/ki.issn0439-8114.2016.11.017TheEffectsofLandUseCarbonEmissionBasedontheCarbonTransferMatrix―ACaseofGuangxiBeibuGulfEconomicZoneLIANGBao-kun1LURu-cheng1LIGuan2LIQiu-ping1（1.SchoolofLandResourcesandSurveying&MappingGuangxiTeachersEducationUniversityNanning530001China；2.CollegeofPublicAdministrationZhejiangUniversityHangzhou310029China）Abstract：Thestudieswasabletoadjustlandusestructureandtoprovideabasisfordecisionstoachievelandusecarbonusingcarbonemissionscausedbytheeffectsofthetypeofchange.BasedontheTMimagesof19902000and2010thelandusetypeconversionwasgainedandthecarbontransfermatrixwascalculated.Theresultsindicatedthatduringthestudyperiodtheresultingfromclasstotransferatotalnetreductionincarbonemissionswas987550.37tanditwasfoundthatthetransitionfromthecarbonsinksinclassandunutilizedlandtocarbonsourcesthecarbonsourcesfromlowtohighemissionscouldleadtotheregionalcarbonemissionwithasignificantincrease.Simultaneouslyalthoughthetransmissionfromcarbonsourcestocarbonsinksreducecarbonemissionswas631690.25tandthechangesbetweencarbonsinkshadsomecontributiontoslowdowncarbonemissionstherewasacertainrelationshipbetweenthemitigationofcarbonandcarbonsink/emissioncapability.Aimingtotheland-usetrendintheemergingdevelopmentareathecorrespondingoptimizationmeasuresfromtheperspectiveofthedevelopm