滇中小百草岭多变石栎林植物区系的初步研究  被引量:9

The Preliminary Floristic Study on the Elements of Lithocarpus variolosa Forest in Mt. Xiaobaicaoling,C.Yunnan

在线阅读下载全文

作  者:王利松[1] 彭华[1] 

机构地区:[1]中国科学院昆明植物研究所,云南昆明650204

出  处:《云南植物研究》2004年第2期157-165,共9页Acta Botanica Yunnanica

基  金:国家重点基础研究发展计划 (2 0 0 3CB14 5 10 0 )资助

摘  要:多变石栎林是小百草岭地区亚热带山地植被垂直带上最具特征性的植被类型 ,也是该地区州级自然保护区境内面积最大、保存最为完整、最有保护价值的植被类型。通过该植被类型中 116种常见种和优势种的群落结构和植物区系分析表明 :仅有中国特有分布种和中国-喜马拉雅分布种能贯穿于该植被类型的整个群落结构之中 ,植物区系成分以热带亚洲、中国 -喜马拉雅和中国特有类型为主 ,表明它隶属东亚植物区 ,中国 -喜马拉雅森林植物亚区 ,云南高原地区 ,云南高原亚地区 (IIIE13a)的一个具体区系单元的基本特征 ;其中的中国特有种又以小百草岭与周边的滇西北、川、黔、藏地区 (主要为横断山地区 )所共有的种占优势 ,从而也表明了小百草岭种子植物区系与横断山植物区系的联系相对紧密 ;通过与周边地区相同植被类型的比较 ,显示其地处滇中高原北缘的地理位置及受金沙江干热河谷气候影响使得该植被类型垂直分布海拔较高 ,更偏“干”的特点。The mid-montane humid evergreen broad-leaved forest is one of typical vegetation types in the subtropical-montane vertical zone of Mt.Xiaobaicaoling,and this vegetation type is one of largest area,integrated and valuable in the Baicaoling Nature Reserve too.The evergreen broad-leaved forest is dominated by Lithocarpus variolosa.Based on the community structure and component of floristic element analysis of 116 frequent and dominant species in this vegetation type,it can be shown that only those species with the areal-type endemic to China and Sino-Himalayan areal-type can occur in all the layers of community,and the Tropical Asiatic elements,Sino-Himalayan elements and elements endemic to China are floristically dominant in the forest.Those two points indicate that the flora of Mt.Xiaobaicaoling is belonging to Yunnan Plateau Subregion,Yunnan Plateau Region,Sino-Himalayan Forest Subkindom,East Aisa Kingdom (IIIE13a).Floristically,the elements endemic to China are those species distributed mainly in the region of Mt.Xiaobaicaoling and the adjacent regions (including NW Yunnan,Sichuan,Guizhou and Tibet),and the so-called adjacent regions are mainly belong to the Hengduan Region in regionalization of China.So it can be shown that the floristics of Mt.Xiaobaicaoling is relatively in nature close to that of Hengduan Region.On the basis of the comparison of the same vegetation type from Mt.Xiaobaicaoling and adjacent regions,it can be shown that this vegetation type od Mt.Xiaobaicaoling is with higher altitude and drier habitat than others due to the more northern location of Mt.Xiaobaicaoling in Yunnan Plateau and reflects the effect of the microclimate in the Valley of Jinshajiang (the upper Yangtze River).

关 键 词:云南 中国 植物区系 多变石栎林 小百草岭地区 植被类型 

分 类 号:Q948[生物学—植物学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象