浑善达克沙地药用种子植物区系分析

Flora of Medical Seed Plants in Hunshandake Sandy Land

应用植物区系地理学的基本原理,对浑善达克沙地药用种子植物的科、属、种组成和地理成分进行了统计分析。结果表明,浑善达克沙地共有药用种子植物504种,隶属于270属78科。浑善达克沙地药用植物资源较为丰富,利用价值高,区系类群的多样性较高。而且本区系植物的生活型以多年生草本占绝对优势;地理成分主要以温带性成分为主,有一定古老性成分且脆弱性明显。

This paper applied some basic methods and principles of floristic geography,and based on the composition and geography elements of the families,genera,species in medical plants from this area.The statistics show that there are 504 species of medical seed plants in Hunshandake Sandy Land,which belong to 270 genera and 78 families.And the medical seed plants resources in this zone are very rich,most of them have high value of use and the diversity of floristic elements is abundant.At the level of these medical seed plants,the perennial herb is dominant in life form.The temperate areal-type holds a dominant position in geography elements,originate anciently in floristic and it is very fragile.