摘要
物种多样性的形成与维持是生物多样性研究中的核心问题之一，形成了许多假说。剖析了群落物种多样性维持具有增加、减少和稳定共存三方面内容，着重阐明物种稳定共存的内因是物种的生物学与生态学特性差异，外因是生境具有小尺度的差异；群落生境异质性是其物种多样性维持的基础，并影响着群落的组织过程；群落的斑块镶嵌结构源于林隙形成的生境异质性，导致了物种多样性；群落斑块镶嵌结构是群落的基本属性，使群落的结构和功能得以长期维持等论点。最后，还以鼎湖山季风常绿阔叶林为例，对群落斑块镶嵌结构的形成及其对物种多样性维持和群落生产力构成与维持等方面的意义予以说明。
The origins and maintenance of species diversity is a core of biodiversity. Nume rous hypotheses address this topic. The maintenance of species di versity in community is divided into increasing process(speciation, invasion and colonization), decreasing process(extinction) and species coexistence. The inte rnal cause of species coexistence is the different biological and ecological pro perty of species, external cause is the habitation heterogeneity of community. The habitation heterogeneity of community is the basis of species diversity and drives the community organization process. Patches mosaic structure of community is due to gap formation and lead species diversity. Patches mosaic is the basic pr operty of community which makes the structure and function of ecosystem prolonge d maintaining. The patches mosaic pattern and its role in maintenance of species d iversity and productivity for the Monsoon evergreen broadleaved forest in Dinghu shan Biosphere Reserve have been discussed.
出处
《生物多样性》
CAS
CSCD
2000年第1期17-24,共8页
Biodiversity Science
基金
中国科学院生物科学与技术研究特别支持费课题!(STZ97-1-05)
关键词
物种多样性
生境异质性
维持机制
植物群落
species diversity, habitats heterogeneity, community organization, patches mosai c pattern, productivity, maintenance mechanism
