查询词典 ecosystems

It brought together palaeontologists and ecologists, as well as climate experts, because fire is a natural and useful part of both past and present ecosystems—a fact that human fire controllers have only reluctantly come to recognise in their zeal to snuff out any blaze as soon as possible.

此次会议云集了古生物学家、生态学家以及气候专家，原因在于森林大火无论在过去还是现在的生态系统中都是一个天然的、有意义的角色——事实上，人类却满腔热忱地组织起来尽可能地扑灭任何火灾。

But, by showing what sorts of species have managed to coexist in the ecosystems of the past, palaeontology might indeed help to design those of the future.

但是通过表明哪些物种在过去的生态系统中得以共存，古生物学的确可能有助于规划未来的生态系统。

One answer might be to target specific ecosystems, such as peatlands , that store large amounts of carbon and that don't generate much money when land use is changed.

一个解决方案可能是把重点放在特定的生态系统上，这些生态系统储存了大量的碳，而且当土地使用改变的时候不会带来多少资金，诸如泥炭地。

Some more radical preservationists also argue that wildlife and ecosystems should be preserved, whatever the cost, regardless of the economic benefits they may have for humans.

一些激进的保护主义者甚至主张不过经济成本和经济效益地保护野生生物和生态系统。

It contains a dazzling array of habitats from below-sea-level deserts to alpine tundra to coastal mountains, seashores, and marine ecosystems.

研究范围包括大陆架海滩、海岸山脉、荒漠隔壁、高山冻原等，研究人员涉及生态学及其相关学科的各个领域。

Critics have pointed out that the deserts are not total wildernesses, but rich and diverse ecosystems in their own right, which would be destroyed.

批评者们指出，沙漠并非都是荒野一片，而是拥有自身丰富多样的生态系统，贸然加以改造将给它们带来毁灭。

The Canadian arctic tundra is one of the world's largest wildernesses but, according to 'Global Warming and Species Loss in Globally Significant Terrestrial Ecosystems', more than three-quarters of its area will disappear, with a loss of one in five of the species living there.

加拿大北冰洋苔原是全世界最大的荒原之一。但是，根据《全球变暖和世界重要陆地生态系统的物种损失》，这片苔原将消失超过3/4的面积，那里生活的物种将有1/5不复存在。

Sandwiched between the Andes and the ocean, the Atacama Desert is one of the world's most arid ecosystems, home to many specially adapted animals found nowhere else.

夹在安第斯山脉和海洋之间的是阿塔卡马沙漠，它是世界上最干旱的生态系统之一，拥有许多特有的动物。

However, in natural ecosystems phosphorus tends to disappear during the course of elemental cycle in chemosphere, meanwhile most of phosphorus in soil is unavailable to plants, and phosphorus fertilizer use efficiency was always not higher than 20 percent, as a result there is a profound significance to exploit the huge soil phosphorus bank and improve fertilizer use efficiency via biological ways.

然而，自然磷矿资源正趋于耗竭，与此同时，土壤中的磷大部分以植物难以直接利用的形态存在，并且投入土壤中的磷肥利用率一般不足20％。

With the exploitation of petroleum and natural gas, the ecosystems in Dzungaria Basin have been somewhat degraded, which might influence the smooth running of the water diversion work and the eco-security of the oasis in the region.

油气开发等人类活动引起以古尔班通古特沙漠为核心的准噶尔盆地局部地区环境严重退化，威胁工程安全运营与绿洲生态安全。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48