摘要
内蒙古阴山山脉中段九峰山地区作为半干旱、干旱的中山山体的一部分,是暖温型和中温型草原的天然屏障,该地区植被以东亚阔叶林为主体,主要区系地理成分为东亚和华北成份。通过对该区植物属、种的区系特征进行统计并与邻近地区的对比分析,结果表明:植物种类的多样性较高,本保护区范围内现共登记有维管植物82科302属596种。其中蕨类植物8科11属18种;裸子植物3科6属7种;被子植物71科285属571种。该地区的植物组成反映了干旱地区的特点,即种类集中于少数科属之中。菊科种类最多,共32属76种,其次为禾本科,蔷薇科和豆科。区系地理成分较临近地区复杂且具有过渡性,以中生多年生草本及东亚成分和华北成分最为丰富。
The characteristics of compact of florstic elements were studied in Jiufeng Mountain reservation area in semi -arid steppe region. Based on the statistics and analysis at genera and species levels, and the comparison and the relation of the surrounding floras, the main results and conclusions are obtained as follows： The species diversity is relatively high. The 596 species of vascular plants, belong to 82 family and 302 genera have been recorded now in Jiufeng Mountain reservation area. The arid and semi - arid zone of florstic elements were represented by all plants, namely, most of plants centralize in a few of families and genera. The maximum family is Compositae, with 32 genera and 76 species, the next are Gramineae, Rosaceae and Leguminosae. The florstic diversity are complexity. The species of steppe florstic and east - Asia are the most rich. The mesophytes are the main water ecological types in Jiufeng Mountain reserve.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2008年第8期151-154,共4页
Journal of Arid Land Resources and Environment
关键词
植物区系特征
保护区
九峰山地区
characteristics of florstic elements
reserve
Jiufeng Mountain area
