中國Holdridge生命地帶與潛在植被空間格局研究.pdf

1、西北師范大學碩士學位論文中國Holdridge生命地帶與潛在植被空間格局研究姓名：郝君明申請學位級別：碩士專業(yè)：地圖學與地理信息系統(tǒng)指導教師：趙軍200905IIIAbstractScientificreasonablesimulationoftheregionalvegetationisalwaysafocusofscientificresearch.Intheglobalchangethelecosystemresearchthec

2、limaticfactsisthemostprimaryonesthatdecidethecoveredtypethedistributionofvegetationthevegetationisthecrucialreflectionsymboloftheEarthclimate.Therefethedeterminationoftheclimatevegetationrelationshasthevitalpracticalsign

3、ificance.IndertoverifythesimulationaccuracyofthelifezonemodelthespatialdistributionoftheChineselatentvegetationwehavesimulatedthedistributionoftheChinesepotentialvegetationexpledthespatialdistributiontheruleofregiondiffe

4、rentiationbasedonthelifezonemodelwhichisunderthesupptofthespatialanalysisofGIStheAMLlanguage.Fiveaspectsofwkareinvolvedinthisthesis.FirstthespatialdistributionofpotentialvegetationofChinaissimulatedwiththelifezonemodel.T

5、hereare28lifezonetypeswereceivethesimulationaccuracyis46%underthecalculationoftheKappa.Inallthetypesthecooltemperatesteppeisabout1088000km2mainlylocatedinthelineoftheYinshandosPlateau–LiupanMountainThewarmtemperatemoistf

6、estisabout1089000km2whichisaccountingf11.5%ofthetotalareaofChinamainlyinthenthofNanlingMountainthesouthoftheYangtzeRiverregion.Thesubtropicalmoistfestisfollowedbythedistributionareaof687126km2mainlylocatedinthesouthYunna

7、nGuizhouPlateauthesouthofNanlingMountain.Thesmallestoneisthewarmtemperatemoistfestcoveringanareaofonlyabout1km2locatedintheHilloftheZhejiangFujian.Secondbasedonnaturalgeographicenvironmentthegeographicaldifferencesofheat

8、waterconditionsthreeregionsaredivided.TheyaretheeasternpartofthemonsoonregionthearidareaofnthwestChinaregiontheQinghaiTibetalpineregion.Thedistributionofpotentialvegetationisanalyzedaccdingasthescopeoflatitudeelevationdi

9、stributionthescopeofcantonthetypeofpracticalvegetationthevegetationinareaofChina.Thirdduetosolarradiationlseaelevationdifferencesotherfactstheruleofterritialdifferentiationismanifested.ThestrongperfmanceofeasternareasofC