introduced species

A multivariate statistical analysis is made on the accumulated observations for the phenology and growth of 521 introduced species in Gannan Arboretum.

对赣南树木园内521个引种树种物候、生长动态长期观测所积累的资料进行多元统计分析。

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The botanist introduced a new species of plant to the region.

那位植物学家向该地区引入了一种新植物.

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In addition, over 109 tree species were introduced in Nanjing. Of them, 28 species are arbors, 77 species shrubs, and 4 species vines.

另外，引种了109种能够露地栽培的常绿阔叶树种，其中乔木28种，灌木77种，藤本4种。

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They say that portraying introduced species as inherently bad is an unscientific approach.

他们说把外来物种描述成有害的是不科学的。

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Alien invasive plant is one that is introduced from original ecosystems to new ones by nature force or human activity, which endangers the new environment or native plant species.

外来入侵植物是指自然或人为地由原生态系统中引入到新生境的植物，会给新生境或其中的物种带来威胁。

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On the planning of ecological and environmental protection zone, existing forest should be protected first, then forest tending be strengthened and different species of life forms and growth forms be introduced.

对于生态环境保护区的规划，应该以现有林地保护为主，加强森林抚育，同时引进不同生活型和生长型的物种。

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Now a new NZ chapter focuses on predation problems of the species introduced to that country.

现下一新纽西兰章著重于引进到那个国家的物种的捕食问题.

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And they have quite devastating effects. Many species become extinct as a result of introduced mammals.

它们造成了灾难性的破坏, 一些物种已经因此灭绝了.

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Main species of acidophile and their characteristics are introduced and advance in the study of their behavior in Nature, acid as well as metal resistance mechanism and molecular genetics is reviewed in this paper. Finally main application of acidophile in practical production is introduced.

介绍了嗜酸菌的主要类群及特征，阐述了它们在自然界的主要行为、适应酸和重金属的生理机制以及分子遗传学研究进展，最后介绍了嗜酸菌在实际生产中的主要应用。

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The introduced species account for only 8%, and the sales volume are parallelled with it.

引进树种种类仅占到8%，销售额与此平行。

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THERE have been several cases in which well-meaning boffins have introduced a new species to overcome one problem only to create another.

科研人员好意引进新物种以解决当地问题，往往一波未平一波又起。这种情况已经屡见不鲜。

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Recently this alien invasive species has been introduced in China and threatened the agricultural production.

近年来该害虫传入我国，对农业生产构成严峻威胁。

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