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加富实验
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  enrichment experiments
     Marine phytoplankton natural communities response to iron enrichments was studied by three in vitro iron enrichment experiments at station C3 in the Jiaozhou Bay, coastal station E4 and oceanic station A2 in the East China Sea.
     通过在胶州湾C3、东海近岸海域E4及大洋海域A2三个站位的现场铁盐加富实验,探讨了不同海域自然浮游植物群落对铁盐加富的响应;
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  “加富实验”译为未确定词的双语例句
     IRON HYPOTHESIS AND THE IN SITU IRON FERTILIZATION EXPERIMENTS IN THE HNLC REGIONS
     铁假说和HNLC海区的现场铁加富实验
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  相似匹配句对
     The experimental result are given as follows:
     实验
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     Laboratory;
     实验;
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     The experiment on the agglomerating rich-mine powder
     配加富矿粉的烧结实验
短句来源
     IRON HYPOTHESIS AND THE IN SITU IRON FERTILIZATION EXPERIMENTS IN THE HNLC REGIONS
     铁假说和HNLC海区的现场铁加富实验
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  enrichment experiments
Enrichment experiments were carried out by gassing lake water and soil suspensions with ambient pressurized air containing 0.5-1.0 ppmv CO.
      
In the studies reported here, enrichment experiments by BMS were carried out using the non-pathogenic E.
      
Nitrate enrichment experiments (200 μM NO3-for 6 d) were conducted in the laboratory to determine if NR activity could be induced.
      
We also conducted in situ and microcosm enrichment experiments to determine what limited algal growth throughout the year.
      
In situ and tank enrichment experiments indicated that growth rates were limited by available N during summer, while P may be limiting during a brief period toward the end of the annual growth cycle (autumn).
      
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During May 11 to May 15, 1999, it was investigated in the Changjiang Estuary and adjacent areas in order to determine nutrient in these areas is the limiting factor of phytoplankton grouth. From the analyses on the distributions of phytoplankton, chlorophyll a, nutrients, temperature and salinity, as well as the result of field and laboratory experiments, it is known that P is the limiting nutrient in the diluted areas and the limiting intensity is higher than that in Nov ember 1998. This is due to the volume...

During May 11 to May 15, 1999, it was investigated in the Changjiang Estuary and adjacent areas in order to determine nutrient in these areas is the limiting factor of phytoplankton grouth. From the analyses on the distributions of phytoplankton, chlorophyll a, nutrients, temperature and salinity, as well as the result of field and laboratory experiments, it is known that P is the limiting nutrient in the diluted areas and the limiting intensity is higher than that in Nov ember 1998. This is due to the volume and direction of the diluted water and the vertical steady state of water. This area is divided into four parts according to the limiting status of phytoplankton growth. Because this investigation was at the end of the spring bloom, the number of species and density of phytoplankton are much lower than that in Nov ember 1998.

1999年 5月在长江口及周围海域进行了环境调查 ,通过对该海域的浮游植物、叶绿素、营养盐、温度、盐度等进行分析 ,并结合现场实验和室内模拟实验 ,对本海域浮游植物的营养限制状况进行了研究 .调查期间受冲淡水流量、流向和水体垂直分层的影响 ,冲淡水影响的范围和磷限制的范围相对于 1 998年 1 1月均有所扩展 .现场对 2 6号站的加富实验直接证实了磷的限制作用 ;室内对 2 6 ,41号站位的营养加富实验也均证实了磷限制的结论 .根据浮游植物的需求和营养盐的补充情况 ,将该海区划分为 :近河口区、冲淡区、台湾暖流影响区和黄海沿岸流影响区 .本次调查处在春季水华的结束阶段 ,因而浮游植物的数量和种类数比 1 998年 1 1月偏低 .

The iron hypothesis of John Martin and the in situ iron fertilization experiments in the HNLC regions were the most exciting events in the 1990s. Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the "iron hypothesis". For this reason, it is important to understand the response of pelagic biota and atmospheric carbon dioxide to increased iron supply. Three in situ iron...

The iron hypothesis of John Martin and the in situ iron fertilization experiments in the HNLC regions were the most exciting events in the 1990s. Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the "iron hypothesis". For this reason, it is important to understand the response of pelagic biota and atmospheric carbon dioxide to increased iron supply. Three in situ iron enrichment experiments, IronEx1 and IronEx2 (in eastern equatorial Pacific), SOIREE (in Southern Ocean), were carried out to test the contentious hypothesis. These experiments confirmed that the increased iron supply led to elevated phytoplankton biomass and rates of photosynthesis in surface waters. But downward export of biogenic carbon did not increased. Estimates of the CO 2 amount removed from the atmosphere by the iron related phytoplankton bloom remained uncertain. The "iron hypothesis" is still a hypothesis.

2 0世纪 90年代 ,JohnMartin提出的“铁假说 (ironhypothesis)”和以此为中心的海洋铁加富实验 (ironenrichments)成为海洋科学领域最受瞩目的事件。“铁假说”的主要内容是 :铁限制了HNLC海区中浮游生物的生产力 ,并进而影响了CO2 由海洋上层向深层的输出 ;如果在HNLC海区加入铁 ,就可以促进浮游植物的生长 ,消耗掉过剩的N、P营养盐 ,加速C从海洋表层向深层输出 ,最终降低大气中CO2 含量 ,缓解温室效应。在赤道太平洋和南大洋进行的现场加富实验证明 ,加入铁以后 ,这些海区的浮游植物生物量增加 ,N、P等营养盐被消耗。但是 ,这些实验并没有降低大气中CO2 含量。铁假说只被证实了一半。

Iron plays an important role in the growth of marine phytoplankton. In the high nutrient and low chlorophyll sea area, iron is a limiting factor of algal growth, and in the nearshore area, iron is one of factors to stimulate the occurrence of red tide. It is shown from study results that the soluble iron has a strong controlling effect on the phytoplanktonic growth, and most of soluble iron is chelated with ligand such as siderophore with high affinity to Fe 3+ . Therefore, the extraction and analysis technology...

Iron plays an important role in the growth of marine phytoplankton. In the high nutrient and low chlorophyll sea area, iron is a limiting factor of algal growth, and in the nearshore area, iron is one of factors to stimulate the occurrence of red tide. It is shown from study results that the soluble iron has a strong controlling effect on the phytoplanktonic growth, and most of soluble iron is chelated with ligand such as siderophore with high affinity to Fe 3+ . Therefore, the extraction and analysis technology of side- rophore is of great importance to the iron-limiting and iron-enrichment experiment and research. In this paper, the extraction, assay and analysis techniques of siderophore from marine phytoplankton are introduced in detail.

铁对海洋浮游植物的生长起着重要的作用。在高营养盐低叶绿素(HNLC)海区,铁是藻类生长的限制因子;而在近岸,铁又是赤潮发生的激发因子之一。研究表明,可溶性铁对浮游植物生长有很强的控制作用,大部分可溶性铁是同具有极强铁亲和力的配位体螯合在一起的,如铁载体。因此,在对铁限制、铁加富实验的研究中,铁载体的提取与分析技术显得尤为重要。着重介绍了海洋浮游植物中铁载体的提取及检测分析技术。

 
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