摘要
AdistributionmapofPinusyunnanensiswasmadeaccordingtothedataongeographicaldistributionofP.yunnanensisbymeansofapplyinggeographicinformationsystemssoftwareArcGIS,andtheclimaticparametersofthedistributionareasforP.yunnanensisweredeterminedbytheclimateforecastmodelClimateChina.TherelationshipbetweenthegeographicaldistributionofP.yunnanensisandtheclimatewasstudiedbyadoptingtheindexesofKiraincludingthewarmthindex(WI),coldnessindex(CI)andaridityindex(K),Xu’shumidityindex(HI),Holdridge’slifetemperature(BT),potentialevapotranspiration(PET),potentialevapotranspirationratio(PER)andthesinglefactorsasthemeanannualtemperature,themeantemperatureinJanuary,themeantemperatureinJuly,themeanannualprecipitation,the>5℃accumulatedtemperature,the>18℃accumulatedtemperature,themaximumtemperature,theminimumtemperature,thetemperaturevariation,theratiooftemperatureandprecipitationoftheyear,etc.AndtheKira’swater-temperatureindexesondistributionalupperlimit,lowlimitandnorthlimitwerediscussed.ThemajorclimaticfactorseffectingthedistributionofP.yunnanensiswerescreenedoutbystatisticalanalysissoftwareSPSSandtheresultsshowedtheimpactfactorsareintheorderoftemperature>humidity>thetemperaturedifferencebetweenmeanwarmestmonthtemperatureandmeancoldestmonthtemperature.
出版日期
2012年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
