摘要
运用最小距离聚类法及主成分分析法对全国 19个地区种子植物区系的种类组成和地理成分进行分析 ,结果表明 ,19个地区可划分为 5类 :第 1类是以泛热带植物区成分为主的亚热带常绿阔叶林区系类型 ,包括闽、赣、浙、皖、湘、鄂 6省的15个地区 ;第 2类是山东泰山 ,是以温带落叶阔叶林为主的植物区系 ;广西大瑶山属于第 3类 ,是古热带植物区成分为主的亚热带常绿阔叶林区系类型 ;元谋干热河谷属于第 4类 ,是热带稀树草原—亚热带常绿阔叶林组合的特殊类型 ;长白山归于为第 5类 。
The minimum distance cluster method and the principal component analysis method have been adopted to analyze the species composition and geographical components of the seed flora in 19 areas.The results reveal that 19 areas may be divided into 5 types.The first type is the subtropical evergreen broadleaved forest flora one with the pan tropical floral region component as the dominant factor,including 15 areas in 6 provinces of Fujian,Jiangxi,Zhejiang,Jiangsu,Hunan,and Hubei.The second type is the flora one with the temperate deciduous broadleaved forests as the principal part and Mount Tai in Shandong Province belongs to this one.The third type is the subtropical evergreen broadleaved forest flora one with the palae tropical floral region component as the dominant factor and Mount Dayao in Guangxi belongs to this one.The fourth type is the special one with the tropical savannah subtropical evergreen broadleaved forest combination and the Yuanmouganrehe River valley belongs to this one.The fifth type is the typical temperate flora one and Mount Changbai belongs to this one.
出处
《福建林业科技》
2001年第2期20-25,共6页
Journal of Fujian Forestry Science and Technology
