查询词典 ecosystem

In this study, we take severely soil eroded land, ban forest (as the control I ecosystem after planting Pinus massoniana and baned) and a mixed forest of Cunninghamia Lanceolata plantation and Pinus massoniana (as the control II ecosystem after planting a mixed forest of Cunninghamia Lanceolata plantation and Pinus massoniana and taking engineering restoration measurement)for study.

本文以未治理的侵蚀地作为对照，以在侵蚀地上营造马尾松并封禁管理以及通过工程措施后种植杉木—马尾松混交林为研究对象，通过野外观测和实验室分析，研究了不同恢复措施对土壤结构、土壤化学性质、群落生物量、植物养分、生物多样性的影响。

The biosphere is a global ecosystem that can be broken down into regional or local ecosystem s, or biomes.

生物圈是一个全球性生态系统，可以分成地区性的或局部性的生态系统，或称生物群落。

On the background of city and country space, on the basis of the ecosystem relations and plan theory (such as societal or economical sense theory), the concepts of city and country eco-planning in this thesis emphasized on the space planning combinated nature ecosystem. It was redound the relation between construction and entironment to be more harmonious on the background of market economy. The theory starts with the relation between development and environment. It applied itself to scheme the land and space resources with eco-cyb emetics.

论文中提出的城乡空间生态规划理论就是以城市与乡村整体空间为背景，以各种城乡生态关系为依据，在经济理性、社会理性等各种规划理论的基础上，强调物质空间建设与自然生态协同发展的空间规划，以期达到在以市场经济为主导的背景下更好地实现城乡建设与生态环境和谐的目的；是从城乡互动过程角度与环境的关系等方面进行辨识，沿用生态控制等理论与手法，对城乡空间资源进行配置的理论与方法。

To combine raising fish in paddy field and feeding duck in open in paddy field and form a new kind of compounded ecosystem, and make paddy- the biggest primary producer in rice field and fish, duck-the greatest consumers band together organically, and form a benign and high efficiency compounded ecosystem which rice, duck and fish live together.

将稻田养鱼和稻田露宿养鸭有机结合起来形成新的复合生态系统，使稻田中最大初级生产者的水稻与最大消费者的鱼、鸭有机结合起来，形成稻-鸭-鱼共栖的良性高效复合农业生态系统。

The macrobenthos are an important constituent in the estuarine and tidal flat ecosystem that play a key role in the cycling of nutrient in the ecosystem.

因此，氨氮的再生对维持长江河口滨岸潮滩生态系统的高生产力和高生物量具有重要的生态意义。

It is perfectly recorded in these 2 lake cores that the transfer from stage 3 to Last Glacial Maximum and from Last Glacial Maximum to Holocene. The record of pollen in lake core 98-4-A show that there are an abundance of species in Arctic ecosystem, the ecosystem was havocked at Last Glacial Maximum, and is resuming gradually in Holocene.

这两支湖泊岩芯完整地记录了北极巴罗地区从3阶段到盛冰期的转换、从盛冰期到全新世的转换。98-4-B湖泊岩芯的孢粉记录表明，末次盛冰期前北极地区的生态系统物种丰富，末次盛冰期时被严重破坏，全新世时期逐步恢复。

Restoration Ecology was ranked as one of three hotpots in biological field as well as biological diversity and global climate change in recent years, which is one fresh branch of Modern Ecology.The causes of degraded ecosystem, techniques and methods of degradation in ecosystem restoration and reconstruction, process and mechanism of ecology whose objectives are the destroyed ecosystems under the stress of natural catastrophes and human activities were primarily researched in the paper.

恢复生态学与生物多样性和全球气候变化并列为生物领域的三大研究热点，它主要研究生态系统退化的原因、退化生态系统恢复和重建的技术与方法、生态学过程与机理的科学，是现代生态学的年轻分支之一，其研究对象是一些在自然灾变和人类活动压力下受到破坏的生态系统。

Thus, complex urban ecosystem carrying capacity model is proposed here in light of biology immunity theory and under a series of assumptions. These assumptions include urban ecosystem storage is the material input and its main function is to offer eco-service, this amount of capacity is jointly determined by natural carrying capacity and acquired carrying capacity of urban, and human being is the receptor of the eco-service.

利用生物免疫学理论构建城市生态系统复合承载力理论模型，认为城市生态系统复合承载力的物质基础是由城市生态库构成、其主要功能是提供城市生态系统服务、其大小由城市生态系统天然承载力与获得性承载力共同决定，而其服务对象则是人。

As the "corridor" in ecology landscape,roads have linear effect on ecosystem and lead to fragmenta- tion of ecosystem.

公路作为景观生态学中的廊道，对生态系统具有线性切割作用，并导致生态系统的破碎化。

The sports ecosystem is a compound social ecosystem composed of person,sports and environment with characteristics of globality,arrangement of ideas,opening to the outside world,teleonomy,order,trend nature,dissipating nature and altitude artificialization;The energy flowing not only has energy stream,matter stream,information stream,but has the value stream,knowledge stream,ability stream,promotion and...

体育生态系统是一个由人—体育—环境构成的复合社会生态系统，具有整体性、层次性、开放性、目的性、有序性、动态性、耗散性以及高度人工化的特征；其能量流动不仅有能量流、物质流、信息流的传输和转化，还有价值流、知识流、能力流的富集，并不断地促进各层次体育的发展。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。