老挝砍伐森林的动力和土地保护策略

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1、浙江大学公共管理学院博士学位论文老挝砍伐森林的动力和土地保护策略姓名：ChanhdaHEMMAVANH申请学位级别：博士专业：土地资源管理指导教师：吴次芳20090601浙江大学博士学位论文摘要土地景观变化驱动力的合适方法。关于解决林地利用问题，并实现老挝政府的目标，老挝政府应该制定明确的政策：稳定轮垦，造林计划，可持续的森林管理系统，环境优先政策，受保护地区，野生资源及水域保护，林地工业开发，产能累积和林业研究开发。关键词；驱动力，森林变化，洛伦茨曲线，主成分分析，老挝111浙江大学博士学位论文ABSTRACTActivitiessuchast

2、hoseconcemedwithindustrialization，shiftingcultivation，miningandlanduse／coverchangeoftenimpacttheenvironmentinunintendedways．Theseimpactssuchasairorwaterpollution，airpollution，，soilerosion，deforestationoccuratthelocallevelbutcanbefeltonaglobalscale．Theunderstandingofthecausean

3、deffectofglobalchangeislocatedinthelinkbetweentheseactivitiesandenvironmentalchange．Theselanduse／managementactivitiesresultfromadecisionprocessbasedonthephysicalenvironmentandeconomic，political，technological，andsocio-culturalforces．Theinfluenceofthesocio-cultural(especiallyno

4、n-economic)forcesinthedecision-makingprocessistheleastwellunderstood．Theprimaryofthestudyistoidentifytheforeststructureandlandusechangewhichweretracedabout10yearsfrom1992tO2002intheLaoPOP．,oneofthemostimportantforestregionsinSouthEastAsianCountries，basedonsatelliteimageinterp

5、retationandfieldsurveyoftheMinistryofAgricultureandForestryLaoPDRtoprovidethebasicdataforlocaldecision．makingaswellassustainablelanduseandmanagementandsecondlytOoverviewthegovernmentpolicyinthepastconcerningtoforestandlandusemanagemenLfinallytheforestlandusepolicyhavebeendeve

6、lopedbasedontheresultofthestudy．LorenzCurvewereappliedtoidentifytheforeststructurechangeanditshowsthatthedensityofthelandusestructuresuchas：CurrentForest犯F)，andOtherWoodedAreaspW)havebeengettingunbalance，atthesametimePotentialForest俨F)，PermanentAgriculture似)andOtherNon—Forest

7、Areas洲F)aretendencytobalance，andtheservicefunctionvalueofglobaldifferentecosystemprovidedbyCostanzaetal，forthevalueofthefiveforestlanduseinLaoPDRwasworkedout,anditshowsthatthehighrateoflossofsuchserviceswillundoubtedlyhaveseriousnegativeecologicalconsequencesinthelongterm．For

8、estLandUseChangeandItsEcologicalEffectduring10years(1992—2002)wereca