南京林业大学学报(自然科学版) ›› 2003, Vol. 27 ›› Issue (06): 18-22.doi: 10.3969/j.jssn.1000-2006.2003.06.005

• 研究论文 • 上一篇    下一篇

西藏米拉山区种子植物区系研究

罗建;边巴多吉;郑维列   

  1. 西藏高原生态研究所;西藏 林芝 860000;西藏高原生态研究所;西藏 林芝 860000;西藏高原生态研究所;西藏 林芝 860000
  • 出版日期:2003-12-18 发布日期:2003-12-18

A Study on Spermatophytic Flora of Mila Mountains in Tibet

LUO Jian, Bianba Dorgyi, ZHENG Weilie   

  1. Research Institute of Tibet Plateau Ecology,Nyingchi 860000,China
  • Online:2003-12-18 Published:2003-12-18

摘要: <正>西藏米拉山区有种子植物71科304属728种,其中裸子植物有3科7属12种。该区植物地理成分复杂,特有现象明显,从科、属和种的分布类型统计分析,均表现为温带成分最多,分别占本层次的比例为43.66%,84.62%和58.72%,反映出典型的温带区系特征和区系的年轻性。依据种的丰富程度和一些自然地理条件的特征将米拉山区系划分为2个植物区系小区:米拉山东坡小区、米拉山西坡小区。与此相毗邻的色季拉山和墨脱比较,米拉山区系与色季拉山的区系性质更为相似。

Abstract: There are 71 families,304 genera and 728 species in spermatophytic flora of Mila Mountains.Among them there are 3 families,7 genera and 12 species of Gymnospermae.The flora is complex in geographical elements,and shows endemism evidently.On the analysis with areatypes of family,genus and species,the component of this flora is composed from temperate members basically(43.66% family,84.62% genus and 58.72% species).The flora shows typical temperate character,and youthful characters.According to the degree of abundance in species and some geographical features,this region can be floristically divided into 2 subregions:E Slope Mila Mt.Subregions and W Slope Mila Mt.Subregions.The comparison of floristic characteristics of Mila Mts.with contiguous of Sergyila Mts.and Medog Nature Reserve,the floristic relationship between the flora of Mila Mts.and that of Sergyila Mts.is more close than that between the flora of Mila Mts.and Medog Nature Reserve.

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