陕西牛背梁自然保护区种子植物区系研究  

A Floristic Study on the Seed Plants in Niubeiliang Natural Reserve

作　　者：康永祥[1] 李景侠[1] 杨平厚[1] 蔡靖[1] 周建云 李登武 吴振海 毕永周 

机构地区：[1]西北林学院,陕西杨陵712100 [2]西北植物研究所,陕西杨陵712100 [3]牛背梁自然保护区,陕西西安710100

出　　处：《西北林学院学报》1999年第3期13-19,共7页Journal of Northwest Forestry University

基　　金：全球环境基金

摘　　要：牛背梁自然保护区种子植物种类丰富，约１０５ 科，４３３ 属，９５０ 种（含种下等级）。其中热带属６６ 个，温带属３１１ 个，１２ 个中国特有属以及４５９ 个中国特有种，５５ 个秦岭特有种。表明本植物区系具有明显的温带性特点及高度的特有性。古植物资料分析表明，该区植物区系的起源时间不会晚于白垩纪；植物群落的主要成分可能以原地生长的种类为主。Species of seed plants are rich in Niubeiliang Natural Reserve.There are about 950 species belonging to 105 families and 433 genera,of which there are 66 tropical genera, 311 temperate genera,12 Chinese endemic genera,459 Chinese endemic species and 55 Qinling endemic species. Statistics indicated that the temperate genera played an important role in the flora and that the flora included the unusually high proportion of endemic species. On the basis of analysis on paleobotanical material in Niubeiliang mountain and adjacent areas, the rich and diverse flora have evolved gradually and autochthonally at least since the latest Cretaceous.

关 键 词：种子植物 植物区系 自然保护区 植物资源 

分 类 号：S759.93[农业科学—森林经理学] S718[农业科学—林学]