山西历山种子植物区系研究

历山位于中条山山脉的东段,有种子植物966种,隶属于490属123科。种子植物属种区系成分复杂多样,以温带成分占优势(温带属290属,占总属数的66.36%;温带种504种,占总种数的53.22%)。对科属种区系成分和植被建群种和优势种组成的分析表明,历山具有典型的暖温带落叶阔叶林的特征。应用PCA排序和多样性指数对历山及部分山地植物属的区系地理成分进行了比较研究,结果表明,历山的植物区系成份与太白山、太岳山和泰山较为相似,而与关帝山、芦芽山和长白山有明显差异。

ON THE FLORA OF SEED PLANTS IN LISHAN MOUNTAINS, SHANXI PROVINCE

Lishan Mountains, belonging to Zhongtiao Ranges, is situated in 35°16'30"~35°27'20"N and 111°51'10"~112°05'35"E in the southern Shanxi. There is a typical warm-temperate continental monsoon climate in the mountains, which is mid-cooler and arid in winter, however, warm and rainy in summer. It is now known that there are 966 species of seed plants, belonging to 490 genera and 123 families in Lishan Mountains respectively, among which temperate distribution compositions make significant dominant. The temperate distribution compositions have 290 genera and make 66.36% in total genera(excluding cosmopolitan), and 504 species and make 53.22%in total species(excluding cosmopolitan). Based on the analysis of the flora of species, genera and construction in Lishan Mountains, it is indicated that the flora has some typical characteristics of warm-temperate deciduous broad-leaved forest. Moreover the floristic geographic compositions of seed plants of Lishan Mountains and some mountains, China were studied by using principal component analysis and diversity indices, respectively, and the results shown that the floristic geographic compositions of Lishan Mountains was closely similar to that of Taibai Mountains, Shaanxi, Taiyue Mountains, Shanxi, Tai Mountains, Shandong. However, the floristic of Lishan Mountains was significant different from that of Luya Mountains, Shanxi, Guandi Mountains, Shanxi, Changbai Mountains, JiLin.