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- Exotic Species Invasion and Ecological Safety 外来种入侵与生态安全
- Status Analysis and Prevention Strategy of Exotic Species Invasion 外来有害生物入侵现状及防范对策
- 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
- exotic species invasion 外来物种入侵
- Preliminary studies on invasive model and outbreak mechanism of exotic species, Spartina alterniflora Loisel. 外来种互花米草入侵模式与爆发机制。
- The leaf venation of eighty-nine species, including two exotic species, were cleared and observed. 制作并观察了89种植物叶片的脉序,其中2种为外国种。
- In ancient times, we began to introduce exotic species into our own land,such as corn,broomcorn,potatoes and so on. 在很早以前，我们就已经开始引进外来的物种，如：玉米，高粱，土豆等。
- 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增加，其中一种是本土种，另一种是外来种。
- Other threats to biodiversity include exotic species, often transported by humans, which can outcompete and displace native species. 其他对生物多样性的威胁包括外来物种，它们常常是通过人的活动迁移的，能够通过生存竞争取代本地物种。
- There is no legislation in place regulating fish movement, quarantine procedures and the introduction of non-native or exotic species. 没有管理转移鱼类、检疫程序和引进非本土或外来物种的法律。
- While exotic species should not be excluded for special reasons or purposes, native tree species should be preferred as a matter of principle. 不应因特别原因或用途而完全排除外来的品种,但仍应以本地品种为优先。
- The alien species invasion is regarded as a global environmental problem of threatening the biological diversification,which has caused tremendous loss in the ecology,economy and the society. 外来物种入侵被认为是威胁生物多样性的一个全球性环境问题,并且已经给我国的生态、经济和社会造成了巨大的损失。
- He says the field of animal behavior and communication is rich with studies on rare and exotic species, but contains surprisingly very little data on cats. 他说，动物行为和交际领域对稀有和外地物种进行了丰富的研究，但是令人吃惊的是，却很少有关于猫的资料。
- Other exotic species have been introduced for landscape restoration, biological pest control, sport, pets, and food processing. 其他外来生物是为了恢复环境、害虫生物防治、体育、宠物、食物加工等目的而引进的。
- Hyphantria cunea Drury is a exotic species and has invaded and spread to Liaoning, Hebei, Tianjin, Shandong, Shanxi and Shanghai. 美国白蛾为外来入侵种,现已扩散蔓延到辽宁、河北、天津、山东、陕西、上海等省市。
- A new exotic species of Asteraceae (Compositae) has been appearing in Tianjin City and Hengshui and Langfang of Hebei Province. 一种菊科外来植物最近出现在我国华北地区的天津市和河北省的衡水与廊坊市。
- It does not cover the introduction of exotic species in general, nor other products of biotechnology which have not been genetically modified. 它一般不包括外地种的引入，也不包括其他生物工艺学方面的未经过转基因改良的产品。
- Biological Invasion and Management of Exotic Species 生物入侵与外来入侵物种的控制
- He says the field of animal behavior and communication is rich with studies on rare and exotic species,but contains surprisingly very little data on cats. 他说，动物行为和交际领域对稀有和外地物种进行了丰富的研究，但是令人吃惊的是，却很少有关于猫的资料。
- non -indigenous species invasion 生物入侵
