Definition of nitrogen cycle noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Autotrophic nitrifiers, by catalysing the oxidation of ammonia to nitrate, play a vital role in the global nitrogen cycle. They convert carbon dioxide (CO2) into biomass and, therefore, are expected to respond positively to increasing atmospheric CO2 concentrations. However, in a long-term free-ai...
Therefore, the addition of PHB leads to significant changes in the microbial metabolic activity of the entire nitrogen cycle, optimizing the water quality in aquaculture systems. This is consistent with the evident decline in NO2−-N, NO3−-N, PO43−-P, TN, and TP levels in the ...
F. Carbon isotope ratios in belowground carbon cycle processes. Ecol. Appl. 10, 412–422 (2000). Google Scholar Farquhar, G. D., Ehleringer, J. R. & Hubick, K. T. Carbon isotope discrimination and photosynthesis. Annu. Rev. Plant Physiol. Plant Mol. Biol. 40, 503–537 (1989). ...
The title complexes (I) undergo an insertion of two NO molecules per Zr atom to give the N- alkyl-N-nitrosohydroxylaminato Zr complexes (II) which are identified as ZrO 2 N 2 metallacycles by an X-ray diffraction analysis of (IIb) (space group R5, Z=6).doi:10.1002/chin.198623266...
Autotrophic nitrifiers, by catalysing the oxidation of ammonia to nitrate, play a vital role in the global nitrogen cycle. They convert carbon dioxide (CO2) into biomass and, therefore, are expected to respond positively to increasing atmospheric CO2 concentrations. However, in a long-term free-ai...
Figure 4. Morphology and Structure Characterization of the Ru@ZrO2/NC after Six Cycle Tests of NRR (A) Low-magnification HAADF-STEM image. (B–F) EDS maps of C (B), N (C), Ru (D), Zr (E), and O (F) of the region shown in (A). (G) HAADF-STEM image showing the presence...
N. An Earth-system perspective of the global nitrogen cycle. Nature 451, 293–296 (2008). Article CAS PubMed Google Scholar Dos Santos, P. C., Fang, Z., Mason, S. W., Setubal, J. C. & Dixon, R. Distribution of nitrogen fixation and nitrogenase-like sequences amongst microbial ...
Carbon cycle Forest ecology This article is cited by Elevated CO2 levels promote both carbon and nitrogen cycling in global forests Jinglan Cui Miao Zheng Baojing Gu Nature Climate Change (2024) Evidence and attribution of the enhanced land carbon sink Sophie Ruehr Trevor F. Keenan César ...
Reactor A has a nominal coolant inlet temperature of about 569° K. and operated with reactor cycle lengths of from about a year to 18 months. Reactor B's coolant inlet temperature was slightly lower, at about 563° K. Reactor B also operated with reactor cycles of slightly larger than 18...