福建武夷山脉裸子植物区系与地理分布的研究

Studies on Flora and Geographical Distribution of Gymnosperm in Wuyi Mountains,Fujian Province,China

通过野外实地考察,研究了福建武夷山脉裸子植物区系与地理分布及种系分化特点。结果表明:福建武夷山脉是中国裸子植物多样性中心之黄山-武夷山脉中心的核心区域,裸子植物共有10科24属39种。其地理分布呈中间海拔膨胀型。裸子植物的区系具亚热带性质,随纬度升高热带分布的比例呈下降趋势,而温带分布和中国特有分布的比例则呈上升趋势。裸子植物种系分化强度表现出南低北高的变化特点。

The geographical distribution,floristic characteristics,and species differentiation of gymnosperm in Wuyi Mountains,Fujian Province,were studied based on field investigation.The results showed that Wuyi Mountains of Fujian was a core region of Huangshan-Wuyi Mountains centers,there were 39 species of gymnosperms,belonging to 10 families and 24 genera.The geographical distribution patterns belonged to mid-altitude bulge type along altitude.Flora of gymnosperm had notable subtropical mountainous characteristic,the proportion of tropical areal-type decreased with the increment of latitude,while the proportion of temperate and endemic to China areal-types increased.The phylogenetic differentiation intensity of gymnosperm decreased from northern to southern of Wuyi Mountains.