1) endangered cause
致危原因
1.
The endangered causes and protective strategies for Shorea wantianshuea,a tropical rain forest tree species in Xishuangbanna;
热带雨林濒危树种望天树的致危原因及保护策略
2) causes to endangerment
致危成因
3) threatening factor
致危因素
1.
It also points out threatening factors for chick category diversity and presents the countermeasures for the protection in .
指出了鸡类多样性的致危因素,提出了今后保护对策。
4) Reasons endangered
致危因子
6) endangered reason
濒危原因
1.
The resources of mother tree of Metasequoia glyptostroboides within Xingdoushan reserve have been surveyed by the authors, and the resource quantity of Metasequoia glyptostroboides mother tree, distribution regularity and endangered reasons have also been explored, therefore, the accordingly protection measures have beenput forward.
笔者对星斗山保护区内的水杉母树资源进行了调查,探明了保护区内水杉母树的资源量、分布规律及濒危原因,并提出了相应的保护措施。
2.
Based on the analysis of its endangered reasons, we put forward some suggestions for its protection.
本文系统综述了珙桐地理分布 ,分布区自然状况、群落特征、形态解剖、繁殖生长等方面的生物学特性 ,并分析了其濒危原因 ,对珙桐的保护提出了一些建议 。
3.
Then,endangered reason,effect on moving protection were analyzed.
笔者对珙桐资源的分布状况、国内外引种栽培情况作了较全面的介绍,对珙桐濒危原因、迁地保护的影响因素进行分析,对迁地保护技术和方法进行探讨。
补充资料：危危
1.重重危险;极其危险。 2.高峻貌。 3.传说中的山精。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条