摘要
七子花是我国特有的单种属珍稀濒危植物,为国家二级重点保护野生植物,主要分布于浙江、安徽和湖北,而浙江是其分布中心.作者在野外调查的基础上,分析了浙江省七子花的地理分布特点、种群数量和群落类型.结果显示:浙江有七子花分布的群落总面积为54.28公顷,保存有七子花约近3万株(丛),并集中分布在临安等5个县市.七子花分布的群落类型较多,但未见于常绿阔叶林中,反映了七子花是在人类长期干扰下勉强生存.但是,七子花对非生物环境的适应幅度较宽,其种群的生存和发展还是有希望的.最后,根据七子花的资源现状,提出了加强保护和持续利用的建议.
Heptacodium miconioides is an endangered species among the national secondgrade protection plants and is endemic to china . It mainly distributes in Zhejiang, Anhui and Hubei Province and Zhejiang is its distribution center. Based upon the field investigation in 2000 to 2001, this paper analyses its geographical distribution, population number and community characteristics of it. The results show that: The total area of community including Heptacodium miconioides in Zhejiang is 54.28 hm2, chiefly distributing in Lian and other five counties, and its population number is about 30000. Heptacodium miconioides exists in various community types, but it is not found in evergreen broadleaved forest which is the native vegetation in Zhejiang. It reflects that Heptacodium miconioides survives under strong interference from human. On the other hand, it is showed that the capability of Heptacodium miconioides adapting to physical environment is fairly good, so the survivorship and development of it are expected. Based upon the analysis of present resource status, suggestion of conservation and sustainable use strategy was also given.
出处
《浙江大学学报（理学版）》
CAS
CSCD
2003年第3期314-318,326,共6页
Journal of Zhejiang University（Science Edition）
基金
国家林业局项目基金
浙江省省长基金
浙江省国家重点保护野生植物资源调查与监测技术项目.
关键词
浙江
七子花资源
地理分布
种群数量
群落类型
保护对策
忍冬科
Heptacodium miconioides
geographical distribution
population number
community type
conservation strategy
