濒危

RAPD technology was first employed to study the rare and endangered plant Euptelea pleiosperma.

利用RAPD技术对濒危植物多子领春木进行了RAPD反应体系的研究。

Some proposals for protecting the resource of the rare and endanged plants are put forward on basis of geographical distribution and floristic f...

阐述了这些植物的地理分布和区系特征，并根据该区珍稀濒危植物的现状提出了一些具体的保护措施。

The aim was to find the effective methods for rapid propagation of seedlings to protect the endangered Fraxinus hupehensi.

［目的］寻找有效的种苗快速繁殖途径，保护濒危的对节白蜡。

In "the National Project on Wildlife Protection and Nature Reserve Construction" carried out by the State Administration of Forestry of China, pheasants are among the 15 groups of animals and plants which have high priority for conservation. In this paper, the species diversity, endemic species, and distribution patterns of Galliformes in China are introduced, and the current status and threats to this group of birds are summarized. Base on achievements made in in situ protection, ex situ conservation and scientific research, the main problems existing in conservation practice are discussed, and a conservation strategy for Chinese Galliformes is suggested.

本文结合国家林业局&十五&期间将要实施的《全国野生动植物及自然保护区建设工程总体规划》，对我国鸡形目鸟类的多样性、特有性和分布特点进行了阐述，对该类群的濒危状况和致危因素进行了分析，从就地保护、易地保护以及科学研究三个方面介绍了我国在该类群研究与保护方面所取得的成就，探讨了目前保护管理工作中所存在的问题并提出了相应的保护对策。

Thanks to him, the Chinese alligator and the Orinoco crocodile were just beginning to recover; but the Siamese crocodile and the "amazing" slim-nosed gharial of India were still right on the edge.

幸亏有了他，中国扬子鳄和奥里诺科河鳄鱼才得以开始复苏；不过，暹罗鳄和&惊奇&小鼻印度鳄至今还在濒危边缘艰难复苏。

Due to the movements of earth crust, and the endangered halobios, nowadays it is hard to find the living body of red coral shell.

由于地壳的变迁，海洋生物的濒危，现今已很难找到活体红珊贝。

The results showed that:There are 32 species,2 varieties,1 form of wild Hedychium plants in China including 2 new species,1 new form and 2 new-recorded species;Some species have specific breeding potential in view of the color of flowers,the type of fragrance and the height of plant in this genus;10 species have wide distribution volumes,but some species with high ornamental values are endangered;17 taxa were successfully introduced into Guangzhou;High temperature in summer is the most important factor to restrict the introduction of Hedychium to Guangzhou.

结果显示：我国野生姜花属植物有32种、2变种和1变型，共计35个分类群；部分种类在花色、香型、株高等性状上具有特异性育种资源；10个分类群野外蕴藏量大，有少数具有较高观赏价值的种蕴藏量小，处于濒危状态，亟待保护；17个分类群在广州地区露地栽培条件下成功引种；夏季高温是姜花属野生种在广州地区引种的主要限制性因子。

Executive plan May:professional consultation,inquire on the net,data collection,training These data includes:the names, photos,habits,the condiction of distribution and the level of severe danger about the aquatic hydrophilous wild animal in the lower reaches of the DaDu River and the drainage area of the MaBian River.

实施方案五月：专家咨询，网上查询，资料收集，人员培训这些资料包括，大渡河下游及马边河流域野生珍稀水生动物的名称，图片，生活习性，分布现状和濒危级别。

The paper studies the reason of endangering mechanism of Davidia involucrate from population ecology and embryology.

而从种群生态学和胚胎学两方面是从宏观和微观的角度探讨濒危原因。

In one hand, this kind of distribution enhanced the ability to withstand the adverse environment condition, in another hand, this kind of distribution had no benefit to extend the population and had some effect on the endangered state of Davidia involucrate.

通过对珙桐在湖北五峰后河的空间分布格局的研究，珙桐的种群偏离随机分布显著，由x~2检验和测定的各集聚强度指数也一致反映出琪桐种群的分布格局服从负二项分布，属集聚分布类型，水分和土壤因子是影响其生长进而影响其分布格局的主导因子，这种分布虽然增强了种群抵御不良环境的能力，但不利于琪桐扩散，对珙桐濒危有一定的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。