Biogeochemical cycles phosphorus

B. H. SvENSSON and R. Soderlund (eds.). Nitrogen, Phosphorus, and Sulfur-Global Biogeochemical Cycles, SCOPE Report, No. 7, Sweden 1976, 170 pp. also SCOPE Report No. 10, Wiley, New York, 1977, 220 pp, and SCOPE Newsletter 47, Jan. 1995, pp. 1-4. 

Feedbacks may be affected directly by atmospheric CO2, as in the case of possible CO2 fertilization of terrestrial production, or indirectly through the effects of atmospheric CO2 on climate. Furthermore, feedbacks between the carbon cycle and other anthropogenically altered biogeochemical cycles (e.g., nitrogen, phosphorus, and sulfur) may affect atmospheric CO2. If the creation or alteration of feedbacks have strong effects on the magnitudes of carbon cycle fluxes, then projections, made without consideration of these feedbacks and their potential for changing carbon cycle processes, will produce incorrect estimates of future concentrations of atmospheric CO2. 

Just as in the case for the hydrosphere, the atmosphere participates in all of the major biogeochemical cycles (except for phosphorus). In turn, the chemical composition of the atmosphere dictates its physical and optical properties, the latter being of great importance for the heat balance of Earth and its climate. Both major constituents (O2, H2O) and minor ones (CO2, sulfur, nitrogen, and other carbon compounds) are involved in mediating the amounts and characteristics of both incoming solar and outgoing infrared radiation. 

Unlike other biogeochemical elements, phosphorus does not have a significant atmospheric reservoir. Thus, while some amount of phosphorus is occasionally dissolved in rain, this does not represent an important link in the phosphorus cycle. River runoff is the primary means of transport between the land surface and oceans, and unlike the other elements discussed. 

Van Cappellen, P. and Ingall, E. D. (1994). Benthic phosphorus regeneration, net primary production, and ocean anoxia A model of the coupled marine biogeochemical cycles of carbon and phosphoms. Paleoceanography 9,677-692. 

Disturbance of Phosphorus Biogeochemical Cycle in Agrolandscapes Conceptual ideas behind simulation of P cycling are related to construction of models for freshwater terrestrial ecosystems and a generalized oceanic system and understanding the restrictions of its application. 

The global biogeochemical cycle of P is almost open. This differentiates phosphorus from carbon and nitrogen, whose natural biogeochemical cycles are, on the contrary, almost closed. 

In this chapter, the biogeochemical cycling of organic matter is discussed from the perspective of its carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur content. 

Paytan A, Luz B, Kolodny Y, Neori A (2002) Biologically mediated oxygen isotope exchange between water and phosphorus. Global Biogeochem Cycles 16-13 1-7 Paytan A, Kastner M, Campbell D, Thiemens M (2004) Seawater sulfur isotope fluctuations in the Cretaceous, Science 304 1663-1665... 

Mopper, K., and D. J. Kieber. 2002. Impact of DOM photochemistry on the biogeochemical cycling of carbon, nitrogen, sulfur and phosphorus in the sea. In Biogeochemistry of Marine Dissolved Organic Matter (D. Hansell and C. A. Carlson, Eds.), pp. 455-489 Academic Press, New York. 

The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike many other biogeochemicals, the atmosphere does not play a significant role in the... 

A detailed description of the biogeochemical cycles of carbon, nitrogen, phosphorus, sulfur, and water in land ecosystems has been given in a work of... 

Krapivin V.F. (2000d). Simulation model of biogeochemical cycle of phosphorus in the biosphere. Problems of Environment and Natural Resources, 10, 26 - 30 [in Russian]. 

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