alien species是什么意思

网络释义

用法例句

Effects of an alien species (Spartina alterniflora) on soil microorganism diversity in salt marshes,Jiangsu coastal inter-tidal ecosystem;

外来种互花米草对盐沼土壤微生物多样性的影响——以江苏滨海为例

This paper discusses and identifies the concepts of alien species and alien invasive species;reports 53 species of alien species of plants in Henan Province,including Chenopodium pumilio R.

讨论并界定了外来种和外来入侵种的概念;报道河南外来入侵植物计53种,其中铺地藜(Chenopodium pumilioR。

In this article, some concepts about biological invasion were presented and the process of alien species change to invasive species was summarized and primary types of biological invasion were concluded.

本文首先对生物入侵的相关概念和内涵进行了介绍,归纳总结了外来种转化为入侵种的过程和主要入侵类型,并从生态学角度对入侵种的入侵机制加以阐述,分析了与入侵物种自身和引入地生态环境相关的假说及入侵种对人类造成的危害。

Biological invasion, exotic species, native species,invasion ecology and related concepts were discussed.

探讨了生物入侵、外来种及入侵种等相关的概念。

There were twenty exotic species for gardens in Changchun city,of which woody and liana plants were total 11,and the distributions of the 11 plants were investigated.

对这11种藤本、木本植物在长春市主要公园的分布进行了调研,并对频度超过50%的5种植物——五叶地锦、火炬树、糖槭、紫穗槐和刺槐进行了定量研究,旨在为今后的外来生物入侵的研究工作、园林引种工作以及外来种入侵的风险评估提供科学基础。

Two forest specialists showed significant increase in densities, one is native and the other is exotic species.

两种树林种类的密度有显著増加,其中一种是本土种,另一种是外来种。

Distribution of an exotic plant Spartina alterniflora in Shanghai;

上海地区外来种互花米草的分布现状

) Griseb(Amaranthaceae) is an invasive species in China.

通过对外来种喜旱莲子草(Alternanthera philoxeroides(Mart。

Effect of exotic species Mytilopsis sallei on macrozoobenthos in the Maluan Bay,Xiamen in China;

外来物种沙筛贝对厦门马銮湾大型底栖动物的影响

Metapopulation model of multispecies competitive coexistence given exotic species invasion

外来物种入侵后的多物种竞争共存的集合种群模型

This paper points out that the aggression of exotic species quickens the forfeiture of the living thing’s varieties, and destroys the ecosystem, and threatens human's health, and causes great loss of the economy, so it brings the side effect to the sustainable development and the human society.

指出了外来物种入侵加快了生物多样性的丧失、破坏了生态系统、造成了巨大的经济损失并危害人类健康,给人类社会的可持续发展造成了严重的负面影响,并提出了减轻外来物种入侵的措施。

Research on allelopathic effects of Oxalis corymbosa——an invasive species;

外来物种红花醡浆草的化感作用研究

There are at least 800 naturalized aliens.

归化的外来种起码也有800种。

Study on Intraspecific and Interspecific Competition in Exotic Species Sonneratia apetala

外来种无瓣海桑种内、种间竞争关系研究

Tree planting is almost automatically confined to exotics.

树木栽植几乎主动地局限于外来种。

Studies on Invasion Biology of Rhus Typhina;

外来种火炬树的入侵生物学特性研究

There are more than 1,000 alien species in China.

中国的外来物种有1000多种。

The introduction of foreign species is a global phenomenon,

引进外来物种是一种全球性的现象，

Understanding Zhou En-lai s Diplomatic Thoughts from Philosophical Perspective;

理解周恩来外交思想:一种外交哲学视角

do a great job in slowing the spread of undesirable foreign species,

有力地缓减了外来物种的蔓延，

The space enclosed by this outer wall.

城廓中庭用这种外墙围起来的空间

Could I talk to you later?

现在我们来学另外一种客气话，

for them ultra-violet is a colour.

对于蜜蜂来说，紫外线是一种颜色。

He blackens his opponents by giving them names.

他用起各种外号来诽谤他的对手。

With the exception of humans, species are important but individuals are not.

除人类以外，种群比个体来得重要。

Both products are released by exocytosis.

两种产物都由外排作用释放出来。

This medicine is used to treat external skin disease.

这种用来治疗皮肤外部的疾

The once exotic fruit now can be found in most supermarkets.

这种外来水果现在大多数超市均有售。

Take precaution against the risk of exotic species invasion and safeguard the safety of ecosystem

防范外来物种入侵风险,维护生态安全

PROGRESS AND PROSPECTS IN RESEARCH OF AN EXOTIC INVASIVE SPECIES,EUPATORIUM ADENOPHORUM

外来入侵种紫茎泽兰研究进展与展望