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N/P Ratio of Nutrient Uptake in the Baltic Sea : Volume 8, Issue 3 (10/06/2011)

By Wan, Z.

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Book Id: WPLBN0003988244
Format Type: PDF Article :
File Size: Pages 27
Reproduction Date: 2015

Title: N/P Ratio of Nutrient Uptake in the Baltic Sea : Volume 8, Issue 3 (10/06/2011)  
Author: Wan, Z.
Volume: Vol. 8, Issue 3
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Bi, H., Jonasson, L., & Wan, Z. (2011). N/P Ratio of Nutrient Uptake in the Baltic Sea : Volume 8, Issue 3 (10/06/2011). Retrieved from http://worldlibrary.net/


Description
Description: Centre for Ocean and Ice, Danish Meteorological Institute, Lyngbyvey 100, 2100 Copenhagen, Denmark. The N/P ratio of nutrient uptake, i.e., the ratio of dissolved inorganic nitrogen (DIN) to dissolved inorganic phosphorus (DIP) taken by primary producers, varies in different basins and in different seasons in the Baltic Sea. The N/P ratio of nutrient alteration fore and after spring blooms is not same as the N/P ratio of nutrient uptake, but the former can be regarded as an indicator for the later in the Baltic Sea. Based on the observed N/P ratio of nutrient alteration, we hypothesize a non-Redfield N/P ratio of nutrient uptake. The 3D-ecosystem model ERGOM coupled with the circulation model DMI-BSHcmod was used to test the hypothesis. When the Redfield ratio was used in the model, the DIP surplus after spring blooms was too high and resulted in the overly growth of cyanobacteria and too much nitrogen fixation. When the non-Redfield ratio was used in the model, the corresponding problem tended to disappear. In summary, we show that: (1) the Redfield N/P ratio of nutrient uptake in the Baltic Sea tends to be too high; (2) a lower N/P ratio 10:1 appears to work better than the Redfield value; and (3) the N/P ratio of nutrient uptake in the Baltic Proper during spring blooms is around 6:1.

Summary
N/P ratio of nutrient uptake in the Baltic Sea

Excerpt
Anderson, T. R. and Pondaven, P.: Non-redfield carbon and nitrogen cycling in the Sargasso Sea: pelagic imbalances and export flux, Deep-Sea Res. Pt. I, 50(5), 573–591, 2003.; Arrigo, K. R., Robinson, D. H., Worthen, D. L., Dunbar, R. B., DiTullio, G. R., VanWoertand, M., and Lizotte, M. P.: Phytoplankton community structure and the drawdown of nutrients and CO2 in the Southern Ocean, Science, 283, 365–367, 1999.; Bergström, S.: Development and application of a conceptual runoff model for Scandinavian catchments. Ph.D. Thesis., SMHI Reports RHO, No. 7, Norrköping, 1976.; Bergström, S.: The HBV model - its structure and applications. SMHI Reports RH, No. 4, Norrköping, 1992.; Conkright, M. E., Locarnini, R., Garcia, H., O'Brien, T., Boyer, T. P., Stephens, C., and Antonov, J.: World ocean atlas 2001, objective analyses, data statistics and figures, CD-ROM documentation, National Oceanographic Data Center, Silver Spring, MD, 2002.; She, J., Høyer, J., and Larsen, J.: Assessment of sea surface temperature observational networks in the Baltic Sea and North Sea, J. Mar. Syst. 65, 314–335, 2007b.; Dick, S., Kleine, E., Mueller-Navarra, S., Kleine, H., and Komo, H.: The operational circulation model of BSH (BSHcmod) – model description and validation, Berichte des BSH 29/2001, Bundesamt für Seeschifffart und Hydrographie, 1–48, 2001.; Edelvang, K., Kaas, H., Erichsen, A. C., Alvarez-Berastegui1, D., Bundgaard, K., and Jørgensen, P. V.: Numerical modelling of phytoplankton biomass in coastal waters, J. Mar. Syst. 57, 13–29, 2005.; Eilola, K., Meier, H. E. M., and Almroth, E.: On the dynamics of oxygen, phosphorus and cyanobacteria in the Baltic Sea: A model study, J. Mar. Syst. 75, 163–184, 2009.; Kress, N. and Herut, B.: Spatial and seasonal evolution of dissolved oxygen and nutrients in the Southern Levantine Basin (Eastern Mediterranean Sea): chemical characterization of the water masses and inferences on the N:P ratios, Deep-Sea Res. Pt. I, 48(11), 2347–2372, 2001.; Kuznetsov, I., Neumann, T., and Burchard, H.: Model study on the ecosystem effect of a variable C:N:P ratio for cyanobacteria in the Baltic Proper, Ecol. Model. 219, 107–114, 2008.; Langner, J., Andersson, C., and Engardt, M.: Atmospheric input of nitrogen to the Baltic Sea basin: present situation, variability due to meteorology and effect of climate change, Boreal Environ. Res., 14, 226–237, 2009.; Larsen, J., Høyer, J., and She, J.: Validation of a hybrid optimal interpolation and Kalman filter scheme for sea surface temperature assimilation, J. Mar. Syst., 65, 122–133, 2007.; Larsson, U., Hajdu, S., Walve, J., and Elgren, R.: Baltic Sea nitrogen fixation estimated from the summer increase in upper mixed layer total nitrogen, Limnol. Oceanogr., 46(4), 811–820, 2001.; Liu, Y., Zhu, J., She, J., Zhuang, S., Fu, W., and Gao, J.: Assimilating temperature and salinity profile observations using an anisotropic recursive filter in a coastal ocean model, Ocean Model. 30, 75–87, 2009.; Minster, J.-F. and Boulahdid, M.: Redfield ratios along isopycnal surfaces – a complementary study, Deep Sea Res. Pt. I, 34(12), 1981–2003, 1987.; Moore, J. K., Doney, S. C., Kleypas, J. A., Glover, D. M., and Fung, I. Y.: An intermediate complexity marine ecosystem model for the global domain, Deep-Sea Res. Pt. II, 49, 403–462, 2002.; Neumann, T.: Towards a 3d-ecosystem model of the Baltic Sea, J. Mar. Syst., 25, 405–419, 2000.; Neumann, T., Fennel, W., and Kremp, C.: Experimental simulations with an ecosystem model of the Baltic Sea: a nutrient load reduction experiment, Glob. Biogeochem. Cycles 16, 7(1)–7(19), 2002.; Neumann, T., Schernewski, G.: Eutrophication in the Baltic Sea and shifts in nitrogen fixation analyzed with a 3D ecosystem model, J. Mar. Syst., 74, 592–602, 2008.; Osterroht, C. and Thomas, H.: New production enhanced by nutrient supply from non-

 

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