杭州西湖风景区种子植物区系分析  

The Floristic Analysis of Seed Plants in Hangzhou West Lake Area from Zhejiang Province

作　　者：金明龙[1] 吴纪杭 金孝锋[3] 丁炳扬[4] 

机构地区：[1]杭州万向职业技术学院生物技术系,浙江杭州310023 [2]杭州市植物园,浙江杭州310013 [3]杭州师范大学生命与环境科学学院,浙江杭州310036 [4]温州大学生命与环境科学学院,浙江温州325035

出　　处：《植物分类与资源学报》2012年第4期333-338,共6页Plant Diversity

基　　金：杭州市西湖风景区管委会;杭州市科技局;西湖风景名胜区生物多样性生态功能研究及示范区建设(2004113B05);本项目获杭州市科技进步二等奖

摘　　要：统计分析了杭州西湖风景区野生种子植物区系,该区共有野生种子植物143科,572属,1111种(含种下分类群)。科的分布区类型以泛热带占优势,达48.9%,热带成分的科远多于温带成分的科(64∶28);从属的分布区类型看,温带成分的属多于热带成分的属(268∶220);种的分布区类型中,温带成分的种数远比热带成分的种数多(502∶234);说明该区亚热带北部区系特征显著。另一方面,本区以单种属和寡种属为主,种的分布区类型中,东亚分布(33.7%)与中国特有分布(32.2%)相当,东亚分布中绝大部分属于中国-日本共有。以中国区系分区标准,将中国特有分布种划分成9个分布亚型,其中以华东-华中-华南分布最多(46.0%)。结果表明该区种子植物丰富、地理成分多样,具有明显的华东东部植物区系特征。The flora of wild seed plants in Hangzhou West Lake area, Zhejiang Province is analyzed in this paper. There are 1 111 species of seed plants which belong to 572 genera of 143 families in this area. At family level, the proportion of the pantropic type is larger than others and reaches 48.9% , while the tropic types are more than the temperate ones （64 ： 28）. At genus level, the temperate types is more than the tropic ones （268 ： 220）. At species level, the temperate types is far more than the tropic ones （502 ： 234）. It is obviously that the flora in this area is characterized by the northern area of subtropics feature. On the other hand, 546 genera, which include only 1 spe- cies or 2-5 species, occupy 879 species. At species level, the East Asia type （33.7%） is almost equivalent to the endemic to China type （32.2%）. Most of the East Asia species are belonged to Sino-Japan type. Based on the sub- area of China, the endemic species to China can be divided into 9 subtypes, and the subtype of East China-Central China-South China holds the biggest proportion （46.0%）. We conclude that the seed plants in the West Lake area are colorful, geographical components are multiform and the characteristic is on the eastern area of East China.

关 键 词：种子植物 植物区系分析 浙江 

分 类 号：Q948[生物学—植物学]