【摘要】 通过详细调查和资料整理,对河北山地种子植物区系649属进行了系统分析,结果显示,河北山地植物区系成分中温带属441属,热带属114属,特有属18属.可以看出温带成分占绝对优势,其中北温带分布属是植物区系的核心,反映出区系典型的温带性质,过渡性突出.同时,分析得出本区系植物种类比较丰富、多样性高、起源古老、特有程度低的特征.更多还原

【Abstract】 An analysis of the generic areal types of the seed plants indicates that Hebei mountain is rich in temperate genera.There are 649 gener in the seed plants.Hebei mountain is mainly temperate genus,with various elements coming together to form a diversified flora.The results show that there are 441 temperate genera,114 tropical genera,and 18 endemic genera.The North temperate elements play an important role in the flora and vegetation,with the characteristies of the temperate zone to the flora.The long geological history and complex natural condition of Hebei mountain made it abundant in species and complex in geographical elements.It is rich in spermatophytes and low in Chinese endemic species,and its origin is ancient.更多还原