宁波北仑山区种子植物区系研究

本文通过野外系统调查与标本采集,对宁波北仑山区的种子植物区系组成与性质进行了综合研究.结果表明:本区共有野生种子植物128科、419属、745种;区系组成极为分散,表现为小科、极小科、小属、极小属占有明显的优势;区系的热带——亚热带、温带特征显著,具有亚热带向暖温带过渡区的特性;属的地理成份的分析表明:处于北纬30°线附近的本区域与相近纬度浙江其他山地的植物区系性质相似,并与东部日本植物区系相联系.

A Study of Flora on Hills and Lower Mountains in Beilun Ningbo

This paper deals with the flora and characters of seed plants on Hills and Lower Mountains in Beilun Ningbo based on a series of investigation and specimen collecting. The results show that there are 128 families, 419 genera and 745 species of seed plants in total. The high percentage of small and monospecific taxa reveals floristic diversity. The tropical-Subtropical and temperate components in taxa are nearly the same ratio, it is obviously that the flora is of transitional prop.erities from subtropical region to warm temperate region. According to the geographic distribution analysis of genera, the characters of flora are similar with that of other Hills and Mountains areas which close to the 30 degree North Latitude in Zhejiang Province, the flora is also related withe the flora of Japan.