我国湿地松主要引种区气候区划的研究
STUDY ON DEMARCATION OF THE MAIREGIONS FOR INTRODUCTION OF SLASH PINE BASED ON CLIMATIC FACTORS IN CHINA
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摘要: 选择了１６个与水热状况有关的气象因子，作Ｒ型主成分分析，用前５个主成分坐标作模糊ＩＳＯＤＡＴＡ聚类分析，将研究区划分为５类，用逐步判别分析建立了各类的判别函数式，回判准确率为８９．３５％，然后结合模糊相似优先比的结果，将我国湿地松主林引种区域分为气候最适宜引种区，气候适宜引种区和气候次适宜引种区３个气候区，湿热气候最适宜引种亚区，湿润气候最适宜引种亚区，温暖气候适宜引种亚区，温和气候适宜引种亚区４Abstract: According to the methods of type-R principal component analysis and fuzzyIS ODATA cluster analysis,the studied area was divided into 5 climatic types basedon 16 itenis of meteorological data from 385 counties.The method of stepwisediscriminant analysis was used for giving discriminant functions to types and sho wed89.35 % accuracy. Considering the result of fuzzy similarity priority ratio,the main re-gio ns fo r intro ductio n o f S lash pine(Pinus elliottii Engelm)in China was divided into 3 climatic regio ns and 4 climatic sub-regions, namely,clinlatically most suited,climatically suited and climatically less s uited regions for introduction,damp-hotclimatically most suited sub-region,humid climatically most suited sub-region warmclimatically suited sub-region,telnperate climatically suited sub-region.Each of theseregions was discussed;
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