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1、城市最小生态用地与景观规划TheMinimumEcologicalLanduseinCityandLandscapePlanning汇报人：张林波Prof.ZHANGLinbo2010.5汇报内容Outline1.研究背景Background2.理论方法Methodology3.景观规划LandscapePlanning1.研究背景BackgroundIn1994,Mr.Brownaskedacontroversialquestion.BackgroundDr.LesterR.BrownWorldWatchinstituteWhowillfeedChina?Hisargumen
2、twasmainlybasedonfollowingassumptionsIfcountriesbecomedenselypopulatedbeforetheyindustrialize,theyinevitablysufferaheavylossofcropland.Ifindustrializationisrapid,thelostofcroplandquicklyoverridestheriseinlandproductivity,leadingtoadeclineintheproductionofcropssuchasgrain.Thesameindustrializa
3、tiondoesincreaseincomeandthedemandforgrain.Today,hispredictionseemstotallywrongbecauseChinaagriculturalproductivityincreasesteadily.BackgroundAnnualGrainOutputandChangesinChinaHowever,dramaticlandtransformationdoeshappen,fromnotonlyarablelandbutalsoforest,grassland,wetlandandwatersurfaceinto
4、urbanlandBackground19792003LanduseChangeinPearlRiverDelta（NASA）Inthefuture,rapidurbanizationwillexertmuchpressonecologicalconservation.Somanylocalauthoritiesarefacingtointractableissuetobalanceecologicalconservationwithurbandevelopment.BackgroundChinaUrbanpopulationgrowthandestimatedurbanlan
5、dexpansionmillionTenthousandshm22.理论方法MethodologyReferringtoReesandCostanza,ecologicalland(EL)isdefinedas“bio-productivelandwhichcanprovideecosystemservicesfunction”,includingDefinitionofEcologicalLandForestlandCroplandGrasslandWetlandWaterbody…EcologicalLandisafunctionofecosystemservices,la
6、ndscapepatternandSpatialHeterogeneity.AffectingfactorsofELBiomeTotalvalueperha($ha-1yr-1)Forest969Grass/rangelands232Wetlands14,785Lakes/rivers8,498Desert0Tundra0Ice/rock0Cropland92Urban0AverageGlobalValueofAnnualTerrestrialEcosystemServices(fromConstanza)Wetland>Watersurface>Forest>Grasslan
7、d>CroplandEcosystemservicesisrelatednotonlytolandusetype,butalsotolandscapepattern.AffectingfactorsofELEcosystemfunctionisheterogeneousspatiallybecauseofthespatialheterogeneityofphysicalandbiologicalfactors..SpatialModelofELEL=f(ES,LP,HE)ES:Ecosyst
