昆明市园林种子植物科的分布区类型分析

Study on the areal types of families on garden seed plants in Kunming

通过调查昆明市不同类型园林绿地的园林种子植物,分析其科的分布区类型,结果表明:昆明市园林种子植物资源十分丰富,有155科523属1 152种。昆明市园林种子植物分布区类型复杂多样,世界性分布的科最多,热带亚热带成分占有明显优势,且与温带成分相互渗透,具有明显的过渡性,具有一定的特有成分;区系成分中以国产植物为主,引进种占有一定比例。

Based on the investigation of garden seed plants in different kinds of greenlands in Kunming city and the analysis of areal types of their families, the results indicate that there are 1152 species of garden seed plants in Kunming, belonging to 523 genera and 155 families. The areal types system of seed plants demonstrates that the areal types of garden seed plants in Kunming are complex and diversified. The widespread families are the most in statistics, and the tropical and subtropical elements dominate all. Transitional characters of geography are obvious because the temperate elements and the tropic elements infiltrate each other, moreover, the tropic and the sub-tropic elements take the dominant position and the endemic elements take partial proportion. Na- tive garden seed plants constitute main part of Kunming garden seed plants and the introduced species occupy partial proportion.