重庆市两种观赏与药用黑桫椤的濒危原因调查与分析

Investigation and Analyzation on Endangered Reasons for Two Decorative and Medicining Using Gymnosphaeras in Chongqing

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,对重庆市仅有的两种药用与观赏黑桫椤的濒危原因进行了调查和分析,结果表明:导致它们濒危的主要原因除了自身的根系不发达、更新效率低和环境适应能力较差外,更重要的是人类对其生存环境的肆意破坏和对其野生植株的私挖乱采。针对这种情况,我们提出了相应的保护与利用对策。

Through information collection and anlyzation, visit and inquiration, field survey, experimentation and summarization, this paper had an investigation and anlyzation on endangered reasons for two decorative and medieining using Gymnosphaeras in Changqing. The results showed that the main reasons made Cibotium barometz in Chongqing endangered were wantonly destroying its living enviroment by people and secretly dugging and randomly picking its wild plants, besides its underdevelopment roots, low efficient rebirth and small environmental-adapting ability. For this, this paper advanced some corresponding protecting countermeasures.