三峡库区特有药用与观赏植物荷叶铁线蕨的濒危原因调查与分析

Investigation and Analysis on the Endangered Reason for the Special Medical and Ornamental Plant Named Adiantum reniforme var. sinense in Three Gorges Reservoir

采用资料收集与分析、访谈调查、实地调查和试验总结等4种调查方法,对三峡库区特有药用与观赏植物荷叶铁线蕨的濒危原因进行了调查和分析。结果表明:导致荷叶铁线蕨濒危的主要原因除了分布区域狭窄、适生环境稀少、有性更新困难、以及在种间竞争中处于劣势等自身因素外,更重要的是人类对其生存环境的肆意破坏和对其植株的私挖乱采,并提出了相应的保护与利用对策。

Through the ways of information collection and anlyzation,visit and inquiration,field survey,experimentation and summarization,the endangered reasons for the special medical and ornamental plant named Adiantum reniforme var.sinense in Three Gorges reservoir were investigated and analyzed.The results showed that the main reasons made Adiantum reniforme var.sinense endangered were wantonly destroying its living enviroment by people and secretly dugging and randomly picking its plants,but its own fators such as its narrow distributing area,few suitable enviroment for living,difficult sexual rebirth and inferior position in inter-specific competition also caused endangerment,this paper posd some corresponding protecting countermeasures.