生物多样性 ›› 1993, Vol. 01 ›› Issue (1): 16-18.doi: 10.17520/biods.1993003

• 论文 • 上一篇    下一篇

三峡工程对库区特有濒危植物荷叶铁线蕨的影响与对策

谢宗强   

  1. (中国科学院北京植物所,北京 100044)
  • 出版日期:1993-11-20

The Impacts of the Three-Gorge Project on the Endangered and Endemic Plant-Adiantum reniforme var. sinense and the Conservation Strategies

Xie Zongqiang   

  1. Institute of Botany,Academia Sinica,Beijing 100044
  • Online:1993-11-20

荷叶铁线蕨是被列入《中国植物红皮书》的三峡库区特有的濒危植物,其分布范围狭窄,繁殖力弱,资源量稀少[1]。三峡水库的兴建将对荷叶铁线蕨的生长环境及种质资源产生严重影响。本文阐述了该种植物的生物学、生态学特性,分析了其群落学特征,并评估了三峡工程对它的影响,提出了保护该物种的有效措施。

Adiantum reniforme var. sinense is not only an endangered plant species listed in the Red Data Book of Plant inChina, but also an endemic one only distributed within a very narrow area in the Three-Gorge region with a weakreproductivity and limited number of individuals. The Three-Gorge Project will inevitable damage the habitats andgermplasm resources of this species in the following ways. Firstly, the Three-Gorge Reservoir will directly sub-merge the individuals which are distributed below the proposed water level (alt. 175m); Secondly, the populationimmigration will destroy the species distributed above the reservoir water level; and thirdly, the climate changescaused by the huge reservoir will affect the future living of this species. To preserve the species endangered by theconstruction of the project, some appropriate ways were suggested in the present paper. The establishment of na-ture reserves in the main distribution areas in the most effective approach for the habitat preservation of the fern,and ex situ conservation and tissue culture are two necessary ways to preserve the fern germplasm resources.

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