东北地区野生藤本植物区系分析

Biotic zonation of the wild climber plants in northeast China

东北地区野生藤本植物共有143种,隶属于63属33科。成分特点为双子叶植物科属种最多;小型科属和单种科属较多,而大型科属较少;草本植物占优势。区系成分分析表明:泛热带成分(热带广布)、世界广布成分、北温带成分占总属数55.6%,是本区藤本植物区系的重要组成部分。各类温带成分占83.91%,而热带成分占6.99%,表明藤本植物区系成分为暖温带性质。

There are 143 species of wild liane in northeast,belonging to 63 genera, 33 families. The biggest figure is with dicotyledon wild liane. The small families and genera and single families and genera have a larger quantity than the big ones. Herbage plants dominate over woody ones. Pantropic, NoethTemperate and Cosmopolitan, occupies 55.6 % of the total separately and they are the main components of the flora. And that the figure of the temperate components and tropical components occupies 83.91% and 6.99 % of the total respectively shows that the flora is tropical and temperate in nature. There are few endemic elements.