Researches on the principle of “endangering habitat” and the theory of plant introduction and acclimatization are eve.
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目的：揭示丹霞地貌生境中铁皮石斛的繁育系统及濒危机制。
Objective To reveal the breeding system and endangered mechanism of Dendrobium officinale in Danxia landform.
以森林为生境的稀有濒危植物占66．93％ ； 因生境丧失而受威胁的植物达71 ．65 ％ 。
Of all the plants, 66.93% existed in forests and 71.65% were threatened with damage of habitats.
这些自然生境拥有许多动植物物种，包括具有保护意义的特有、濒危和受威胁物种。
The natural habitats host many species of flora and fauna including endemic, endangered and threatened species of conservation significance.
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