内蒙古大青山种子植物区系研究

Study on the Flora of Seed Plant in Daqing Mountain

大青山种子植物共有88科,391属,874种,其中裸子植物3科7属12种,被子植物85科,384属,862种。植物生活型多样,多年生草本占优势(65.22%),一二年生草本也占有一定比例(18.19%)。中生植物为主,占72.09%,旱生植物其次,占23.00%,由于生境的多样化,也有一些湿生和水生植物分布。地理成分复杂,东亚成分优势明显,蒙古成分也较多,反映出与周边地区的联系,温带亚洲、北温带、旧大陆温带成分均占有较高的比例,表现出明显的温带性质。

There are 874 seed plant species belonging to 391 genera and 88 families in the Daqing Mountain. Among them there are 862 species in 85 families, 384 genera of angiosperm and 12 species （ in 3 families, 7 genus） of gymnosperm. Life forms of plant are diverse. The perennial herb is dominant and annual -biennial herb is secondary, their proportion are 65.22% and 18.19% respectively. The mesophyte is main water ecological types, the proportions is 72.09%, and the proportions of xerophyte is 23.00%. Hygrophyte and hydrophyte existing due to the diverse habitat. The floristic geographic elements are complex. Dominant East Asia distribution and more Mongolia type are closely related to the around region. High proportion of Asia Temperate Zone, Northern Temperate Zone and Old Continent Temperate Zone types reflect obvious temperate zone characteristics.