甘肃省草地植物区系研究

Study on the grassland flora of Gansu Province

按照吴征镒的中国种子植物分布区划分,对甘肃省草地植物区系的组成、植物科、属的统计及其分布特征进行了分析,得出甘肃省草地植物区系物种丰富,共有植物154科706属2 128种;地理成分温带性质明显;有一定的过渡性及相互渗透的特点;区系成分以年轻成分为主,中国特有属较少。

Gansu Province is located in the northwest of China and the topography is complex. There grassland area and rich plant resources. The flora of grassland plants was studied according to the areog are vast raphy of the seed plants in China （WU Zheng-yi）,and the flora composition,plant families,genera and their distribution characteristics were analyzed. The results showed that the plant resources are abundant,there are 154 families, 706 genera and 2128 species,the dominant flora were temperate. The features of transition and interpenetration of floristic composition are significant. The flora is mainly composed by the young components with few Chinese endemic genera.