Biogeochemical budget

The importance of aerosol deposition, via precipitation and/or dry particle deposition, has received considerable attention in recent years, showing that dry and wet deposition of nutrients and metal contaminants are significant in biogeochemical budgets in wetlands and estuaries. 

Biogeochemical budget essentially a checks and balances of all the sources and sinks as they relate to the material turnover in reservoirs. 

Biogeochemical budget of nitrogen in South Korean agroecosystems... 

The abatement strategy for reduction of N emission and deposition, as well as decreasing of undesirable losses from agroecosystems owing to excessive application of fertilizers, has to be based on calculations of its regional biogeochemical budgets with quantitative parameterization of different fluxes in terrestrial and aquatic ecosystems. 

In addition to biogeochemical cycles (discussed in Section 6.5), the hydrosphere is a major component of many physical cycles, with climate among the most prominent. Water affects the solar radiation budget through albedo (primarily clouds and ice/snow), the terrestrial radiation budget as a strong absorber of terrestrial emissions, and global temperature distribution as the primary transporter of heat in the ocean and atmosphere. 

The biogeochemical mass budget of various macro- and microelements for this catchment is shown in Table 4. 

Figure 23. Biogeochemical mass budget of mercury in the experimental forest catchment in South Sweden. The fluxes of methylmercury (FIgm) and total mercury (Fig,) are shown in g/ha/yr (Driscoll et al., 1994).

Graedel, T. E and W. C. Keene, Tropospheric Budget of Reactive Chlorine, Global Biogeochem. Cycl., 9, 47-77 (1995). 

Four forms of the basic IAG model (27, 46) are described here to predict rates of recovery of LRL alkalinity. The models are described in order of increasing complexity and realism, reflecting the inclusion of IAG contributions from more biogeochemical processes (4,17). As previously discussed, chemical budgets from the first 3 years of acidification indicated that the main processes controlling IAG are sulfate reduction and cation production by ion exchange (in order of importance). Effects of nitrate and ammonium retention roughly cancel each other (in terms of net alkalinity production) (17). 

Chanton, J.P., and Martens, C.S. (1987b) Biogeochemical cycling in an organic-rich coastal marine basin. 8. A sulfur isotopic budget balanced by differential diffusion across the sediment-water interface. Geochim. Cosmochim. Acta 51, 1201-1208. 

Wulff, F., and Stigebrandt, A. (1989) A time-dependent budget model for nutrients in the Baltic Sea. Global Biogeochem. Cycles 3, 63-78. 

My presentation here on the global sulfur budget has been very much facilitated as I earlier this year received from Professor M.V. Ivanov a monograph (not yet published in English) with the following title The global biogeochemical sulfur cycle and influence on it of human activity ( ). 

Bopp, L., LeQuere, C., Heimann, M., Manning, A., and Monfray, P. (2002). Climate-induced oceanic oxygen fluxes Implications for the contemporary carbon budget. Global Biogeochem. Cycles 16(2), 1022, doi 10.1029/2001GB001445. 

Christensen, J. P., Murray, J. W., Devol, A. H., and Codispoti, L. A. (1987). Denitrification in continental shelf sediments has major impact on the oceanic nitrogen budget. Global Biogeochem. Cycles 1(2), 97-116. 

Plattner, G. K., Joos, F., and Stocker, T. F. (2002). Revision of the global carbon budget due to changing air-sea oxygen fluxes. Global Biogeochem. Cycles 16(4), 1096, doi 10.1029/2001GB001746. 

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