淮北平原区种子植物区系成分研究

参考安徽植物志等相关文献资料，对淮北平原区种子植物区系成分进行分析。结果表明，淮北平原区共有种子植物94科、307属、565种（包括亚种、变种和变型），分别占安徽省野生种子植物科、属、种总数的48．2l％、33．66％、19．74％。科以泛热带成分为主（占56．16％），其中科的热带性地理成分占58．90％；属以北温带分布最多（占28．97％），其中属的温带性地理成分占62．30％。淮北平原区植物区系隶属于华东植物区，基本上属于温带性质和亚热带性质，并且温带区系性质较明显。

Study on the Huaibei Plain Flora Composition

The composition of flora in Huaibei plain was analysed under referring Anhui Flora and other related literature.The results showed that there were 565 species of wildseedplants(including subspecies,varieties and forms) which belong to 307 genera and 94 families in Huaibei plain.Accounted for wild seed plants in Anhui Province,the species,genera and families were the total of 48.21% ,33.66% and 19.74% .Among the families the tropical elements were dominant and maked up 58.90% .Among the gener the north temperate elements were dominant and maked up 62.30% .This flora showed both temperate and subtropical nature and the temperate nature was more obvious.