【摘要】 利用文献资料探讨了云南省悬钩子属(Rubus L.)植物多样性的地理分布格局。结果表明,本属植物物种数随着海拔的升高呈先增加后减少的偏峰分布格局,峰值出现在海拔2 000m左右;在纬度梯度上,从南到北,悬钩子属植物的物种丰富度呈单调递增趋势;在经度梯度上,由西到东,悬钩子属植物的多样性呈递减趋势。总体上,研究区域内悬钩子属植物的分布集中在高纬度、中海拔的滇西北地区,滇西北地区可能是悬钩子属植物在云南的分布和分化中心。更多还原

【Abstract】 The geographical patterns of species diversity of Rubus in Yunnan were investigated based on the information from literature.The results show that the number of Rubus in Yunnan increases with the rise of altitude and begins to decrease at certain sea level,and the peak is found at the altitude of about 2 000 meters.From south to north,an progressive increase of species can be observed,which is consistent with their flora origin and ecological characters.From east to west,there is an increasing trend of species richness.Overall,Rubus is mainly found in the northwestern part of Yunnan.And this area may be the center of specification and distribution of Rubus in Yunnan.更多还原