摘要
本文运用定性与定量相结合的方法,对中国薯蓣属(Dioscorea)的区系地理成分进行了研究。结果表明,该属以中国特有、热带亚洲、东亚分布3种成分为主。中国特有成分集中于西南地区,其次是华南地区;热带亚洲成分大多限于古热带植物区的北部湾地区、滇缅泰地区,少数种的北界到长江流域;东亚成分大多呈中国-日本分布式样。
The quantitative and qualitative anaiyses are used on the study of the floristic geographical ele-ments of the Chinese Dioscorea; The results show:1.There species-the Chinese endemic,tropical SEAsia and Eastern Asia spocies comprise the greatest proportion of the Chinese Dicocorea;2.TheChinese endemic species grow mainly in the SOuthwest and South Ctina;3.Most tropical SE Asiaspoies only srow in Beibu Bay,Yunnan,Burma and Taitund in the old thepical world;4.The easternMsia species are mainiy in the form of China-Japon distribution.
出处
《浙江师大学报(自然科学版)》
1994年第1期81-85,共5页
Journal of Zhejiang Normal University(Natoral Sciences)
基金
浙江省教委基金
关键词
薯蓣属
区系地理成分
模糊图论
Dioscorea,floristic geographical elements,Fuzzy grapmical analysis