生物多样性 ›› 1997, Vol. 05 ›› Issue (1): 40-48.  DOI: 10.17520/biods.1997007

• 论文 • 上一篇    下一篇

中国温带荒漠区的植物多样性及其易地保护*

尹林克   

  1. (中国科学院吐鲁番沙漠植物园，新疆吐鲁番 838008)
  • 收稿日期:1995-10-12 修回日期:1996-02-20 出版日期:1997-02-20 发布日期:1997-02-20

Diversity and ex-situ conservation of plants in the desert region of temperate zone in China

Yin Linke   

  1. Turpan Eremophytes Botanic Garden,Chinese Academy of Sciences,Turpan,838008
  • Received:1995-10-12 Revised:1996-02-20 Online:1997-02-20 Published:1997-02-20

PDF (PC)

4310

被引次数

31

摘要：

荒漠植物多样性研究及其保护是生物多样性保护的重要组成部分。 中国荒漠区植物种类贫乏（约1000余种），分布稀疏，生物量小，起源古老，地理成份复杂（有14个地理分布型）， 特有成份多（80余种），珍稀濒危植物种类相对较多（50～60种），在荒漠气候和特殊的土壤基质条件下， 形成了多种生态型和特殊的生活型，为荒漠植物多样性易地保护提供了可能性和必要性。 处于亚洲荒漠区的吐鲁番沙漠植物园的研究工作，正从传统的植物引种驯化和经济植物栽培，向荒漠区系植物多样性保护领域转移，现园内保存的荒漠区系植物成份已达42.2％，特有种和珍稀濒危植物也占相当比例。 长期适应荒漠环境的各类植物具有多种多样的抗逆性基因，因而有着潜在的开发利用前景。

关键词: 原核微生物, 物种多样性, 进化分支多样性, 生理类群多样性, 遗传多样性

Abstract

Conservation and research of desert plant diversity is an important part of the biodiversity protection. Plant species in plain desert  of  China  is  very  scarce(about 1000 species) and distribute sparsely. Its biomass is poor.   But  its  origin  is ancient with complicated geographical component (about 14 areal-types) and high endemic component (about 80 species). The rare and endangered species is relatively rich (about 50～60 species). Complicated ecotype and endemic life from of  desert  plant  have  been formed based on desert climate and special pedology, so ex-situ   conservation  on  its biodiversity is necessary and possible.  Turpan  Eremophytes  Botanic  Garden  lies  in desert region of Asia. Its research purpose is changing from introduction to protection of desert flora. At present, the component of the desert plants in the  botanical  garden has reached to 42.2% and the amount of endemic and rare endangered species is relatively large. All kinds of plants that have adapted for desert environment over a  long  period of time contain a great deal of resistence gene, so there is a  potential  prospect  on exploitation and utilization of them.

Key words: prokaryotic microorganisms, species diversity, diversity of phylogenetic lines, physiological diversity, genetic diversity

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