查询词典 ecosystems

Permaculture is the conscious design and maintenance of agriculturally productive ecosystems which have the diversity, stability, and resilience of natural ecosystems.

永续农业是指有意识的设计和维护农业生产的生态系统，具有多样性，稳定性和可恢复性的自然生态系统。

Says Barbier: When we incorporate the services of ecosystems we may start to think: maybe the costs of maintaining ecosystems aren't that high compared with the benefits.

他说道：我们正在失去自然资本就是因为它是免费的。

To meet the needs for scientific, technological and socio-economic development in China, we proposed the four areas that the Chinese scientists should focus their study of global change and terrestrial ecosystems in future, including:(1) Metabolism and coupling mechanism of key life elements in terrestrial ecosystems in China;(2) Implications of terrestrial ecosystems in areas sensitive to global change and in important transects on global change;(3) Interactions between biogeochemical cycle of C, N, P, S in China and global change; and (4) Development of regional dynamic vegetation model which meets the actual needs of China.

中国学者在全球变化与陆地生态系统研究领域也开展了许多工作并取得了重要成绩。按照我国科学技术和社会经济发展的需求，本文提出了未来我国在该领域的研究重点，包括（1）中国陆地生态系统重要生命元素的代谢及其耦合机制研究；（2）全球变化敏感区域或重要样带上陆地生态系统对全球变化的影响研究；（3）我国的C、N、P、S生物地球化学循环与全球变化的关系研究；（4）发展中国特色的区域植被动态模型。

To meet the needs for scientific, technological and socio-economic development in China, we proposed four areas on which the Chinese scientists should focus their study of global change and terrestrial ecosystems in future, including:(1) Metabolism and coupling mechanism of key life elements in terrestrial ecosystems in China;(2) Implications of terrestrial ecosystems in areas sensitive to global change and in important transects on global change;(3) Interactions between biogeochemical cycle of C, N, P, S in China and global change; and (4) Development of regional dynamic vegetation model which meets the actual needs of China.

中国学者在全球变化与陆地生态系统研究领域也开展了许多工作并取得了重要成绩。按照我国科学技术和社会经济发展的需求，提出了未来我国在该领域的研究重点，包括①中国陆地生态系统重要生命元素的代谢及其耦合机制研究；②全球变化敏感区域或重要样带上陆地生态系统对全球变化的影响研究；③我国的C、N、P、S生物地球化学循环与全球变化的关系研究；④发展中国特色的区域植被动态模型。

ABSTRACT Global carbon cycle is a very important issue in the study of global climate change. Forest ecosystem carbon cycle is one of the important part of global carbon cycle, but at the present time there are considerable uncertainties in the research of global carbon cycle, which also exist in forest ecosystems carbon cycle research, especially in the estimation of carbon storage of region forest ecosystems and CO〓 fluxes exchanging with other systems.

全球碳循环是全球气候变化研究的核心问题之一，森林生态系统碳循环是全球碳循环的重要组成部分，目前在全球碳循环的研究中还存在很大的不确定性，这种不确定性同样存在于森林生态系统碳循环的研究中，尤其表现在对区域森林生态系统碳库大小及其与大气CO〓交换通量的估计上。

In this paper, the Beijing mountain as a big ecosystems is studied, the use of RS technologies on the ecological degradation of mountain conditions of the remote monitoring of the dynamic, given explanatorily the ecological degradation monitoring indicators and calculation methods, the degradation of mountain ecosystems derived monitoring results, and in accordance with the monitoring results to identify the main reason for the degradation of mountain ecosystems.

本文把北京山区这么一个大的生态系统作为研究对象，利用RS技术对山区的生态退化状况进行了动态的遥感监测，探索性的给出生态退化相关的监测指标和计算方法，得出山区生态退化的监测结果，并根据监测结果识别山区生态退化的主要原因。

It is the important objective of the core project "Global Change and Terrestrial Ecosystems" of International Geosphere Biosphere Project to prodict the feedback of terrestrial ecosystems on atmosphere and climate and the responses of the structure and function of ecosystems, natural and managed, to global change in finer scales.

预测陆地生态系统对大气和气候的反馈作用及在更微观的尺度上预测全球变化对自然和农业生态系统的结构和功能的效应是国际地圈－生物圈计划的核心项目"全球变化与陆地生态系统"的重要研究目标。

As a result of its high sensitivity, low-bearing capacity of the disaster, small environmental capacity, the Karst ecosystems have become a typical ecological fragile zone. The fragile ecosystems coupled with the irrational human use of the land, lead to the rapid environmental degradation, which seriously restricted the economic development in the areas. Thus people's attention about them is increasing, and a series of related research has started, which has yielded some results.

由于喀斯特地区生态系统敏感度高，灾变承受能力低，环境容量小，成为典型的生态脆弱区，加上人类对土地的不合理利用，使得该地区生态环境迅速退化，严重制约该地区的经济发展，因而受到人们的极大关注，对其展开了一系列的相关研究，取得了一些成果。

For forest, grassland and river ecosystems, phreatophyte should be applied to, promoting the primary succession of the ecosystem. For farm and urban ecosystems, the main crops and pollution-resisting ornamental plants should be selected for the purpose of agricultural production, landscapes construction and bioremediation so as to control the speed and direction of secondary succession of these ecosystems.

对于森林、草地、江河等自然生态系统，植被选择应以原生种类为主，以促进生态系统进行原生演替；而农田、城市绿地生态系统，植被恢复应以生产生活、景观营造、生物修复为目的，宜选择当地主要优势农作物、观赏性好、抗污染的植物，以控制生态系统次生演替的方向和速度。

Results indicate that China's terrestrial ecosystems can be divided into 683 types, 135 of which are of high priority, including 75 forest ecosystems, 27 wetland ecosystems, 8 shrub ecosystems, 12 steppe ecosystems, 6 meadow ecosystems and 7 desert ecosystems.

结果表明，我国683类陆地生态系统中有优先保护生态系统类型有135类，其中森林生态系统75类，湿地生态系统27类，灌丛生态系统8类，草原生态系统12类，草甸生态系统6类，荒漠生态系统7类。

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％。