甘肃崆峒山种子植物多样性分析

Analysis of the diversity of the spermatophytic inKongtong Mountain of Gansu Province

崆峒山植物区系有种子植物 680种 ,隶属于 3 4 5属 88科 .种子植物区系成分在属和种的水平上均以温带成分占绝对优势 .中国特有分布在种的水平上明显比在属的水平上多 .分析Raunkiaer生活型组成 ,地面芽植物以 196种 ,占总种数的 2 8 82 %而居首位 ;Drude生活型组成以草本植物为主 ,共 4 82种 ,占总种数的 70 87% .在水分生态类型中 ,中生植物共 5 4 4种 ,占总种数的 80 0 0 % ,而水生植物仅有 3种 ,占总种数的 0 4 4 % .根据经济用途的不同 ,把植物资源分为 9类 .分析结果表明 。

In the flora of Kongtong Mountain,there are 680 species of spermatophytic,belonged to 345 genera and 88 families.In composition of the floristic geographical elements of genera and species,the temperate elements take dominant position.The distribution of the species endemic to China is much more than the distribution of the genera endemic to China.Analyze the composition of Raunkiaers life form,Hemicryphtphytes takes the first place(196 species,take 28 82% of the total).In the composition of Drudes life form,perennial herb and annual herb take dominant position(482 species,take 70 87% of the tatal).In the composition of ecological types,there are 544 Mesophytes(take 80 00% of the total),but there are only 3 Hydrophytes(take 0 44% of the total).According to the different economic purposes,the vascular plants are devided into 9 types.The result of analysis shows the diversity of the seed plants in Kongtong Mountain is rich.