nitrogen cycle

noun

1. 氮循环（各种形式的氮在自然界的循环）
   the processes by which nitrogen is passed from one part of the environment to another, for example when plants decay

1. Study on the Contributions of Microorganisms in Nitrogen Cycle of Urban Wetland
   微生物在城市湿地氮循环系统中的作用研究
2. Any of various soil bacteria that take part in the nitrogen cycle, oxidizing ammonium compounds into nitrites or nitrites into nitrates.
   硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。
3. Research on the Nitrogen Cycle Bacteria and Actions in the Rhizosphere of Economic Aquatic Plants
   水生经济植物根际氮循环细菌及其作用的研究
4. Nitrogen turnover from grazing livestock excreta is the key process in the nitrogen cycle of pasture ecosystems.
   放牧家畜排泄物氮转化是草原生态系统氮循环的关键。
5. Human interference in the nitrogen cycle has made far more nitrogen available to plants and animals; it has done much less to help the planet deal with all that nitrogen when they have finished with it.
   人类对氮循环的干预使得地球和动物有了更多可以获取的氮，当人类对氮循环的干预完成后，却又没有设法帮助自然去处理所有的氮。
6. Advances in ammonia-oxidizing microorganisms and global nitrogen cycle
   氨氧化微生物生态学与氮循环研究进展
7. In situ remediation of eutrophic water bodies by the combination of water hyacinth and immobilized nitrogen cycle bacteria
   凤眼莲-固定化氮循环细菌联合作用对富营养化水体原位修复的研究
8. In this article we discuss the every course in nitrogen cycle and its quantity feature, then introduce the models of nitrogen cycle, we also carry out a brief exposition for the hot-spot of the research of nitrogen cycle in current ecological system.
   探讨了氮素循环各个过程及其数量特征，对氮素循环模型进行了介绍，并对当前生态系统中氮素循环的研究热点进行了简要的论述。
9. The research direction such as the carbon and nitrogen cycle in the terrestrial and marine ecosystems and the relationship and influence mechanism between the greenhouse gas and climate change is also introduced.
   结合温室气体源汇及其与气候变化，指出了目前应重视的一些研究内容，如研究陆地和海洋生态系统的碳氮循环问题，温室气体浓度变化与气候变化的相互关系以及气候变化机制。
10. The autotrophic nitrifying bacteria play a critical role in nitrogen cycle in nature.
    硝化细菌是一大类在自然界氮循环中起关键作用的微生物菌群。
11. Terrestrial carbon cycle and nitrogen cycle are closely coupled.
    陆地生态系统碳循环和氮循环密切相关，碳贮量与碳通量在很大程度上受氮循环的影响和限制。
12. The activities of proteinase and peptidase were raised, which stimulated nitrogen cycle.
    提高了蛋白酶和肽酶的活性，促进了氮素的循环；
13. Microbial effect on nitrogen cycle and nitrogen isotope fractionation on the earth's surface& a review
    地表环境氮循环过程中微生物作用及同位素分馏研究综述
14. Experimentation and Simulation on Carbon and Nitrogen Cycle
    基于试验与模型的C、N循环研究马氏体中的碳和氮
15. The relation between DON and nitrogen cycle;
    DON与氮循环的关系；
16. In this review we summarized the recent work on uptake of dissolved organic nitrogen by plants, status and function of DON in nitrogen cycle. We also discuss recent work on the uptake characteristic of DON in production system of horticultural crop and study methods of DON.
    本文就土壤生态系统中植物对DON吸收、DON在氮循环中的地位和作用、园艺作物生产系统中有机氮吸收特性、DON的研究方法与技术路线等方面做了概括和探讨。
17. The elevated atmospheric CO2 has effects on the absorption of nitrogen, concentration in plant and soil, the C/ N in plant and soil, the nitrogen cycle of plant and soil.
    大气CO2浓度升高对植物吸收氮素，以及对植物和土壤中的氮浓度、C/N比和氮循环都存在着影响。
18. Effect of Seaweed Extract on Nitrogen Cycle in Eutrophic Water
    海藻提取物对富营养化水体氮素循环影响研究
19. The joint inhibitions of benzene and three kinds of monosubstituted benzenes ( aniline, phenol and nitrobenzene) on ammonia-oxidizing activity of sediment was investigated in order to study the effects of combined pollutants on nitrification process in the nitrogen cycle.
    为研究复合苯系污染物对氮循环中硝化过程的影响，采用摇瓶实验研究了苯及其3种一取代化合物（苯酚、苯胺和硝基苯）对底泥氨氧化活性的联合抑制作用。
20. Nitrogen cycle and management of rice-mushroom production system in Longhai of Fujian
    福建龙海：稻菇生产系统的氮素循环和管理
21. After analyzing the relationships between soil nitrogen cycle and soil nitrogen loss approach, some control measures including balancing fertilization, enhancing plant capability of nitrogen absorption, optimizing nitrogen management, cultivation system and irrigation mode were put forward.
    分析了土壤氮素循环及其对土壤氮流失的影响，提出了加强氮肥管理、重视平衡施肥、提高作物氮素吸收能力、优化耕作制度及灌溉方式等降低我国农田土壤氮素流失的主要对策。
22. Nitrogen cycle in water layer of paddy field as affected by the plantation of aquatic plants
    稻田养殖水生绿肥对水层中氮素循环的影响
23. The nitrification and denitrification which are driven by ammonia oxidizers and denitrifying bacteria, play important roles in the global nitrogen cycle, and therefore receive widespread interest.
    氨氧化菌和反硝化菌所参与的硝化和反硝化作用是全球氮循环的重要步奏，因此受到了广泛关注。
24. Human activities have intensively altered the nitrogen cycle of terrestrial ecosystems, increasing system productivity, but also bringing environmental and health problems.
    人类活动已经剧烈地改变了生态系统的氮生物地球化学循环过程，在增加系统生产力的同时，也带来了严重的环境和健康问题。
25. Microorganism and nitrogen cycle in artificial wetland ecosystem were affected to a certain extent.
    于此同时，人工湿地生态系统中微生物、氮循环也受到一定程度的影响。
26. Nitrogen is an important nutrition for halobios, ocean organic nitrogen is very important in the global nitrogen cycle.
    氮是海洋生物生长的重要营养元素，海洋中的溶解有机氮是海洋氮循环的重要组成部分，也对全球氮循环有重要影响。
27. Increased nitrogen deposition will influence nitrogen cycle, plant growth, species interaction and species composition of the terrestrial ecosystems.
    氮沉降增加对陆地生态系统中的物质循环、植物生长、种间关系和物种组成等都会产生深刻影响。
28. This paper mainly studies the teaching design of the nitrogen cycle.
    本文研究的是氮的循环教学设计。
29. Fixed ammonium, an important nitrogen type, plays a remarkable role in soil nitrogen cycle.
    固定态铵是土壤重要的氮素形态之一，它在土壤整个土壤氮循环圈中扮演着重要角色。

noun

1. the circulation of nitrogen