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黄杉

网络Pseudotsuga sinensis; Douglas fir; Pseudotsuga sinensis Dode

黄杉

网络释义

黄杉

Pseudotsuga sinensis

裸子植物-中文百科在线 ... 崖柏 Thuja sutchuenensis 黄杉 Pseudotsuga sinensis 苏铁科 Cycadaceae ...

Douglas fir

世界遗产统计表_百度知道 ... Debarking 剥去(木材)皮的 Douglas fir 花旗松,黄杉 Ebony 乌木,黑檀木 ...

Pseudotsuga sinensis Dode

黄杉属_百度百科 ... 黄杉属 Pseudotsuga 黄杉 Pseudotsuga sinensis Dode 松科 Pinaceae ...

Pseudotsuga menziesii

... m³ 体积密度  k 350 美国黄杉 (Pseudotsuga menziesii) 强度等级 C30，根据德国工业标准DIN 1052 强度特征值，单位 N/ …

Yellow Cedar

这是美工雕刻刀, 小地方也很好用, 黄杉(Yellow Cedar)▼ 五月 (2) 与主题完全无关, 同学的船来先插花一下, 小灰与小白小灰是S…

Chinese Douglas Fir

树木英拉汉名称大词典 ... 粉绿花旗松 Blue Douglas Fir 黄杉 Chinese Douglas Fir 铁杉属 Hemlock,Hemlock Spruce ...

例句：

In fact , the cedar bark can contain as much sugar as the wild berries that are a staple of the bears' diet.

事实上，黄杉树皮的含糖量同棕熊主要使用的野生浆果相差无几。

So , although the climate change may have made the cedar roots more sensitive then they used to be , this is not what killed them.

所以，虽然气候的改变让黄杉根系变得比过去更加铭感，但是这不是他们死亡的原因。

So , the beetles are not the fundamental cause responsible for the decline of the yellow cedars.

所以，甲虫的入侵不是黄杉数量下降的重要因素。

Douglas fir (Pseudotsuga menziesii ) is Canada's largest tree and comprises two distinct species : Coast Douglas fir and Interior Douglas fir.

花旗松（黄杉）是加拿大最大的树，包含两大树种：海岸花旗松和内陆花旗松。

Scientists have advanced several hypotheses to explain this decline .

目前，科学家提出了几个假说来解释黄杉数量的下降。

In those cases , the beetles attacked trees that were already damaged or sick and what probably dead any way.

这种情况是因为甲虫侵袭的是已经受损或者患病的黄杉，这些黄杉没有甲虫也会死去。

A second hypothesis attributes the decline to brown bears .

第二种假说认为是棕熊导致了黄杉数量的减少。

So , how can we explain those dead cedars that were infected with beetles ?

那么，我们该如何解释那些因为甲虫侵袭而死亡的黄杉呢？

So , healthy cedars are unlikely to suffer from the insect damage .

所以，健康的黄杉是不会受到害虫损害的。

here , one can also see the rare aged yellow chinese fir and iron chinese fir and enjoy the yellow mountains mao feng , a famous local tea .

在此游客既可欣赏稀有珍贵的中国黄杉和中国铁杉又可品尝土特名茶黄山毛峰茶。

The third hypothesis states that gradual changes of climate may be to blame.

第三个假说是气候的缓慢变化导致了黄杉数量的减少。

One hypothesis is that the yellow cedar decline may be caused by insect parasites, specifically the cedar bark beetle .

其中一个假说认为黄杉数量下降是由以衫皮甲虫为代表的寄生害虫导致。

There are no bears on the islands , yet the islands cedars are still in decline .

而在那些岛屿上是没有熊的，而黄杉的数量却依然减少。

For example , the bark and leaves of the yellow cedars are concentrated with powerful chemicals that are poisonous to insects .

比如，黄杉的树皮和叶子上聚集着一些对于昆虫来说有毒的的强力化学物质。

Community Investigation and Conservation of Calocedrus macrolepis and Pseudotsuga sinensis in Yimen County, Yunnan Province , China

云南易门翠柏和黄杉的群落调查及保护

Current status of germplasm resources of genus Pseudotsuga in Yunnan and the strategies on conservation and utilization

黄杉属植物在云南的资源现状及保护利用研究

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