湖南省木兰科植物资源及地理分布研究  

Studies on the Resources and Geographical Distribution of the Magnoliaceae in Hunan Province

作　　者：李瑞雪[1,2] 金晓玲[1] 宁阳[1] 陈洁[1] 蔡梦颖[1] 

机构地区：[1]中南林业科技大学,长沙410004 [2]湖南科技大学,湘潭411201

出　　处：《复旦学报（自然科学版）》2016年第2期267-274,共8页Journal of Fudan University：Natural Science

基　　金：林业公益性行业科研专项经费(201404710);湖南省"十二五"重点学科建设(湘教发[2011]76号)

摘　　要：通过野外调查、资源采集、标本鉴定和资料分析,研究了湖南省木兰科植物的资源状况及地理分布.结果表明：湖南省木兰科植物有6属39种（含1亚种,3变种）,分别占国产属、种数54.5%、24.38%,全省47个县有分布,集中分布在湘南、湘西南、湘西北地区;垂直分布集中在海拔500~1 500 m范围内,水平分布中心在北纬28°~26°和东经108°47＇~111°之间;湖南省与广东、广西的木兰科物种相似性系数分别为58.46%和55.42%,其次为贵州、江西和四川,与云南的相似性系数最低.Studies were carried out on the resources and geographical distribution of the Magnoliaceae plants in Hunan Province by the field investigation, colIection, specimen identification and data analysis. The results show that Hunan is one of the modem distribution center of Magnliaceae plants in our country. There are 6 genera and 43 species, including varieties, of the family Magnoliaceae in Hunan Provinces. These plants are distributed in 47 counties and the distribution centers are in the south, southwest and northwest of Hunan province. Their vertical distribution center occurs between 500-1 500 m above sea level, and its horizontal center limits about 28°-26°N and 108°47′-111°E. The similarity coefficient of Magnoliaceae species in Hunan compared with Guangdong and Guangxi are 58.46% and 55.42%, respectively, followed by Guizhou,Sichuan and Jiangxi, the lowest with Yunnan.

关 键 词：木兰科 物种丰富度 垂直分布 水平分布 相似性系数 

分 类 号：Q948.2[生物学—植物学]