生物多样性

Solidago canadensis, a perennial plant native to North America, is now spreading rapidly in China, especially in eastern China. The plant has already induced serious threats to native ecosystems and biodiversity and has caused considerable economic loss to those areas.

原产于北美的加拿大一枝黄花目前正在我国境内尤其是东部地区迅速扩散，对当地的社会经济、自然生态系统和生物多样性构成了严重威胁。

That phenomenon is call as the " transfer of value of biological resource spatially ".

我们称这种现象为生物多样性价值在空间上的流动。

How do extinction,speciation,and human activities affect biodiversity?

灭绝的物种和人类活动如何影响生物多样性？

4 How do extinction, speciation, and human activities affect biodiversity?

物种的灭绝、形成以及人类活动如何影响生物多样性？

All these are due to the specificity of the decision CBD.

所有这些都是由于特异性生物多样性公约的决定。

In this dissertation, four aspects of ECM fungi were studied in a subtropical forest, a ECM fungi identification and biodiversity estimation, using morphological and molecular ways; b genetic structure of ECM fungi population, taking two case studies; c structure of ECM fungal community, based on sporocarp and plant investigation over-ground; and d growth response of host and non-host plant to ECM fungi inoculation.

由于外生菌根真菌的宿主植物常常是一些生态系统的优势种和建群种，并且这些真菌还参与了许多森林生态系统的有机和无机元素循环、物种的竞争和共存、生物多样性的维持、生态系统的演替等过程，因而对外生菌根真菌的研究有助于对这些生态系统维持和演替机制的深入理解。

The invasion of Eupatorium adenophorum Sprengel may occupy the living space of other plant species, reduce the native biodiversity and ecosystem productivity, and cause serious ecological consequences.

紫茎泽兰入侵会挤占其他物种的生存空间，降低生物多样性和生态系统生产力，带来诸多负面生态效应。

Ageratina adenophora Sprengel (Synonym: Eupatorium adenophora Sprengel), originally found in Mexico and Costarica, is a noxious invasive alien weed, and it has become widespread in many countries and regions.

起源于中美洲墨西哥和哥斯达黎加地带的菊科植物紫茎泽兰(Ageratina adenophora Sprengel，同名：Eupatorium adenophrioum Sprengel)，作为一种典型的恶性入侵杂草，现已在全球很多国家和地区广泛分布，并在这些地区造成了严重的经济和生物多样性损失，甚至对人畜健康构成了一定的威胁。

The results show that:(1) wetland reservoirs can control wetland degeneration and springwater overflow;(2)wetland reservoirs can store floodwater and winter to prevent flood, drought and desertification so that keep ecological system balance of wetland;(3) uncoordinated contradiction between agricultural water use and ecological water demand can be resolved under the adjustable function of wetland reservoirs;(4)wetland reservoirs has effective capability to keep biological diversity.

对位于玛纳斯河流域泉水溢出带中的湿地水库群对流域生态环境的作用进行了研究，结果表明，该湿地水库群在防止湿地萎缩退化、防止次生盐渍化、保护流域内生物多样性、防风固沙、防止土壤沙化、抵御洪、旱灾害威胁、加强湿地调控能力以及增加了绿洲的人口承载能力和生产力等方面起到了很好的保护作用。

CBD寸土寸金due to geographical location, and large amount of office space everywhere, but Wantong Center Product designed to shift the standard four-storey area of 745-1500 square meters, single-family area of 15,000 -3.2 million square meters of body volume of office space, hopes to differentiate products in the region and gain market advantage and uniqueness.

由于生物多样性公约寸土寸金的地理位置，以及大量的办公空间无处不在，但万通中心产品旨在改变标准的四层面积745-1500平方米，单户面积15000 -3.2万平方米的体数量的办公空间，希望能够区分产品在该地区获得更多的市场优势和独特性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。