用模糊聚类探讨福建三明格氏栲自然保护区植被类型的划分

THE FUZZY CLUSTER STUDY ON THE DIVISION OF NATURAL VEGETATION TYPES OF CASTANOPSIS KAWAKAMII NATURE RESERVE IN SANMING,FUJIAN

初步统计福建三明格氏栲自然保护区有种子植物１４５科，４３４属，１０１０种（变种）。植物区系古老，地理成分以泛热带和热带分布成分较多。我们运用模糊聚类分析了保护区群落的划分。结果表明，划分的类型与用植物所在群落层中的重要值来确定群落乔木层的优势种划分群系的方法基本相一致。计自然植被３个群系：格氏栲林，米槠林，栲树林；人工植被５个群系：马尾松林，杉木林，建柏林，楠木林，毛竹林。

It is now known that there are 1010 species( varieties)of seed plants in the Castanop sis kawakamii nature reserve in Sanming,Fujan,which belong to 434 genera and 145 families,In general,its origin is rather ancient.The analysis of floristic geographic elements indicated that the percentages of pan-tropical and tropical elements are high.The result of the fuzzy cluster analysis showed that the division of formation is in agreement with the method of the important value of each species in its vegetation layer identified by the dominant species in each vegetation layer.Nature vegetation 3formation:1.Form.Castanop sis kawakamii,2.Form.Castanop sis carlesii,3.Form.Castanopsis fargesii.Planted vegetation 5 formation:1.Form.Pinus massoniana,2.Form.Cunninghamia lanceolata,3.Form.Fokienia hodgnsii,4.Form.Phoebe bournei,5.Form.Phllostachys pubscens.