安徽合肥大蜀山维管植物区系地理成分研究

安徽合肥大蜀山维管植物区系地理成分研究

程红梅

【期刊名称】《植物科学学报》

【年(卷),期】2011(029)003

【摘 要】Bad on the investigatio手抄报模板简单又漂亮 n of the vegetation and collectio一分一段表2022 n of

samples, the flora composition of Dashu Mountain in terms of families,

genera, and species were analyzed and the R/T rate were compared with

floras in similar latitude sites.A total of 508 plant species, belonging to 315

genera and 120 families东北骂人的话 were recorded,among which Pteridophyte had 10

families,13 genera and 14 spec爬山虎怎么种 ies;gymnosperms had 7 families,19 genera 基本频率

and 47 species;and angiosoerms had 103 families,283 genera and 447

dominants of the forest community was mainly compod of

Fagaceae, Pinaceae, Ulmaceae, Aceaceae ,Tiliaceae, and

Leguminosae, analysis of floristic geographical elements indicated

that the 226 genera fell into 14 h the temperate zone

component held a certain proportion,tropical species were rich,with

temperate affinities elements accounting for 23.81％ and the tropic

affinities accounting for 18.52％ ,which prents an especially transitional

number of species endemic to China was deciduous

broad-leaved forest in temperate zone component was still a relatively

stable forest cover of the ing to the comparison analysis in

terms of R/T rate,the tropic characteristics of flora were higher

than tho of the Yaoluoping Nature Rerve,Anhui and

angyu,Anhui,lower than tho of , Nanjing and

, Chuzhou, and similar to tho of , Nanjing and

u, Nanjing in terms of genera.%在野外调查和标本采集的基础上,对

合肥大蜀山植物区系基本组成和科属地理成分进行了分析,并与邻近山地植物区系

进行了R/T比值的比较.统计共有维管束植物120科、315属、508种(含种下等

级),其中蕨类植物10科、13属、14种,裸子植物7科、19属、47种,被子植物

103科、283属、447种.壳斗科、松科、榆科、槭树科、椴树科和豆科等是该区

系的主要表征科,构成了其各森林类型的主要树种组成.种子植物区系成分属的水平

上可划分为14个类型,温带成分占有较志愿服务活动总结 高比例,热带种类丰富,北温带分布最多

(23.81%),其次为泛热带分布(18.52%),表现出向北亚热带植物区系明显过渡的特征.

中国特有成分较为缺乏.落叶阔叶林仍是该区相对稳定的森林植被类型.与其他山地

植物区系R/T比值的比较表明,其热带性质大于安徽鹞落坪和皇藏峪,小于南京幕府

山和滁州琅琊山,与南京紫金山和牛首山较为接近.

【总页数】8页(P288-295)

【作 者】程红梅

【作者单位】合肥植物园,合肥,230031

【正文语种】中 文

【中图分类】Q948.525.4

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