查询词典 ecosystem

Based on the laboratory building the small aquatic ecosystem, removal efficiency of total nitrogen and total phosphorus by Acorus Calamus, Tonina Fluviatilis and Hygrophila difformis with submerged and emerged cultivation was researched. The results showed that the content of TN was 68.43-279.31 and 23.44-170.13mg in shoots and in roots, respectively.

通过在室内构建小型水生生态系统，研究了挺水和沉水培养模式下大水剑、太阳草、水萝兰3种水生植物体内氮磷含量及去除生活污水中氮磷的能力。

Ageratina adenophora is a worldwide noxious weed and has caused tremendous detrimental effects on agriculture, forestry, rangeland and natural ecosystem since it invaded in Southwesten China in last century.

入侵我国西南地区的恶性杂草紫茎泽兰Ageratina adenophora(Sprengel对农业、林业、草场牧场以及自然生态系统带来了严重的危害，常导致入侵生境生态系统结构和功能发生改变，降低生物多样性且造成巨大的经济损失。

Most ecosystem simulations use empirical models to partition assimilated products based on observations of the allometric relationship among plant organs.

：目前生态系统模型模拟中所用的大多数同化物分配模型是经验性的。

Will on anguine island form a snake to have young bird for years, birdie eats the insect, the insect has a plant, the plant is the food chain of fertilizer with birds' droppings, formed the complete ecosystem that is a center with the snake.

多年来在蛇岛上形成了蛇吃小鸟，小鸟吃昆虫，昆虫吃植物，植物以鸟粪为肥料的食物链，形成了以蛇为中心的完整的生态系统。

In American inchoate development in the course western, as a result of policy oriented cause annihilative to land natural resources development to use, changed the structure of land ecosystem and function, make land natural resources sufferred serious destruction, cause the penalty that gives nature, since May 1934, what the United States happened to stun the world is a chain of " black storm " incident, the lesson is extremely deep.

在美国早期开发西部的历程中，由于政策的导向造成对土地资源毁灭性的开发利用，改变了土地生态系统的结构和功能，使土地资源遭到了严重的破坏，诱发出自然的惩罚，从 1934年 5月起，美国发生了震动世界的一连串&黑风暴&事件，教训极其深刻。

According to British "Daily Express" reported on the 8th, scientists believe that one named "Apophis" of 390 meters wide asteroid would be possible at 2036 and the Earth collision, the release of the atomic bombing of Hiroshima than high 100,000 times the energy of thousands of square kilometers of area will be directly affected, and the release of dust into the atmosphere will probably affect the entire earth's ecosystem.

据英国《每日快报》8日报道科学家相信，一颗名叫阿波菲斯的390米宽小行星将可能在2036年和地球相撞，释放出比广岛*********爆炸高10万倍的能量，数千平方公里的地区将受直接影响，而释放到大气中的灰尘可能将影响整个地球的生态。

Is it proper for appropriative users to take all of a stream's available water for human consumption and degrade or destroy the natural ecosystem?

将一条河的所有可用水都用于人类的消费，退化或破坏生态系统，占用者的这种做法合理吗？

Based on the study, we conclude that glomalin is an important indicator for arbuscular mycorrhizal hyphal growth and variations in soil ecosystem.

建议把球囊霉素作为研究丛枝菌根真菌生长状况和土壤生态系统波动的一个重要指标。

As we know, arbuscular mycorrhizal fungi were widespread in the steppe and had a significant function in carbon sequestration in ecosystem.

草地生态系统在全球碳循环中作用重大，而丛枝菌根广泛存在于草原生态系统中，对碳固持有着重要作用。

We took Picea mongolica forest in Baiyinaobao natural preserve InnerMongolia Autonomous Region as the research object,studied its environment,autecology,population ecology,community ecology,ecosystem ecology and socialecology systematically.

本文以内蒙古白音敖包自然保护区的沙地云杉林为研究对象，通过大量的野外调查、室内分析和资料收集，从保护生态学的观点出发，对沙地云杉林的环境、个体生态、种群生态、群落生态和生态系统生态以及社会生态进行了全面系统的研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷