福建省宁德市种子植物区系研究

Studies on the Seed Plants Flora in Ningde,Fujian

在全面调查宁德市植物资源的基础上,对该地区的种子植物区系进行了统计分析,结果表明:宁德市有种子植物156科605属1 176种,分别占福建省种子植物科、属、种数的83.87%、52.52%、35.22%。区系的表征科由禾本科、菊科、蔷薇科、豆科、壳斗科、樟科组成,科的地理成分以热带起源为主。属的地理成分为热带分布型的有313属,占总属数的51.74%,其中泛热带分布型占20.17%;温带分布型的有220属,占总属数的36.36%,其中北温带分布型占11.07%。同样说明了该地区植物区系的热带属性。该植物区系具有种类丰富、起源古老、孑遗植物和珍稀植物丰富等特点。

On the basis of the overall survey on the plant resources in Ningde, statistical analysis of seed plant flora in the area was made,results showed that： Ningde City owned 156 fmilies 605 genera 1,176 kinds of seed plant, which accounted for 83. 87%, 52. 52% ,35.22% of family, genera and kind of the plant in Fujian accordingly. Flora branch of the characterization of the grass family consisted of Gramineae, Asteraceae, Rosaceae,legumes, Fagaceac, Lauraceae, the family geographical origin of the main ingredient was mostly tropical resource, the genera geographic composition was a tropical distribution of a total of 313 ,accounted for the 51.74 percent of total number, pan-tropical zone distribution type accounted for 20. 17% ; the temperate zone distribution type accounted for a total of 220, accounted for 35.36% of the total number, the north temperate zone distribution type accounted for 11.07% ; It also reflected the region＇s tropical attributes of plant flora. District of plant species owned rich, ancient origin, relict plant and rare plants, and other rich features.