摘要
蔷薇科(Rosacae)植物兼具有原始的、过渡的和进化的类群。其地理成分包括泛北极古地中海和少数古热带成分,但以温带为主,其中尤以中亚、西亚成分占比例大。经初步研究,蔷薇科植物在新疆境内的分布。大致可以划分为3个区。由于地带气候因素和水热等条件差异,致使植物分布很不一致,种类以疆北分布区和疆西北分布区最为丰富,疆南分布区较为稀少。越往西北植物类型也由高大乔木灌木逐渐过渡为低矮或垫状小灌木和草本,反映出植物与生态环境条件相关的规律性变化。新疆蔷薇科植物与邻近地区在区系组成上有密切联系。通过新疆蔷薇科植物与国外邻近地区共有种的比较分析,说明我国新疆与中亚、西亚的区系关系较密切,与东亚等地区也有不同程度的联系。
The Rosaceae is one of the eight largest families of Xinjiang flora. Consisting of 30 genera with 140 species.The total number of species is slightly less than those of Compositae,Graminales,Cruciferae,Umbelliferae,Fabaceae,Labia tae and Chenopodiaceae in Xinjiang,amounting to 62.55 of the total number of the Rosaceae flora in China.The four subfamilies of Rosaceae including primitive,intermediate and advanced groups.These groups have be en found in Xinjiang.They also including primitive and advanced groups.The dist ribution of Rosaceae in Xinjiang can be divided into three groups.Ow ing to climate and temperature the Rosaceae groups are greatly diffe rent.The species are rich in North Xinjiang and Northwest Xinjiang,but poor in south Xinjiang.They grow from high wood to shortbrush or grasses. The Ro saceae in Xinjiang is relatied to adjacent areas.They are also relaed to M idAsia, NorthAsia and East Asia.
出处
《石河子大学学报（自然科学版）》
CAS
2003年第1期59-62,共4页
Journal of Shihezi University(Natural Science)
