Particulate phosphorus

Chambers, R. M., Fourqurean, J. W., Hollibaugh, J. T., and Vink, S. M. (1995). Importance of terrestrially-derived particulate phosphorus to phosphorus dynamics in a west coast estuary. Estuaries 18,518-526. 

Ormaza-Gonzales et al. [41] compared methods for determining dissolved and particulate phosphorus in seawater. 

Bloesch, J., and M. Sturm, Settling flux and sinking velocities of particulate phosphorus (PP) and particulate organic carbon (POC) in Lake Zug, Switzerland . In Sediments and Water Interactions, P. G. Sly, Ed., Springer, New York, 1986, pp. 481-490. 

Figure 3. Particulate phosphorus concentrations (size-fractionated-standing-crop) integrated over the epilimnion.

Figure 5. Depth profiles of particulate phosphorus concentration at selected times in 1982. Continued on next page.

Figure 14. Isopleths of total particulate phosphorus concentration (milligrams/ gram) in the <8.2-pm size fraction of the suspended particulate material.

Benitez-Nelson, C. R., Madden, L. P. O., Styles, R. M., Thunell, R. C., and Astor, Y. (2007). Inorganic and organic sinking particulate phosphorus fluxes across the oxic/anoxic water column of Cariaco Basin, Venezuela. Mar. Chem. 105,90-100. 

Nemery, J., and Gamier, J. (2007). Typical features of particulate phosphorus in the Seine estuary (France). Hydrobiologia 588,271-290. 

Solorzano, L., and Sharp, J. H. (1980b). Determination of total dissolved phosphorus and particulate phosphorus in natural waters. Limnol. Oceanogr. 25,754-758. 

The persistence of elemental phosphorus in the air is very short due to oxidation to phosphorus oxides and ultimately to phosphorus acids. However, the particulate phosphorus aerosol may be coated with a protective oxide layer that may prevent further oxidation and extend the lifetime of particulate phosphorus in air. Both wet and dry deposition remove unreacted elemental phosphorus and the degradation products from the air. Similarly, elemental phosphorus oxidizes and hydrolyzes in water and in soil. A small amount of elemental phosphorus is lost from soil and water by volatilization. 

Figure 9.22. Oceanic cycles of organic carbon, nitrogen, and phosphorus. DOC = dissolved organic carbon POC = particulate organic carbon NPP = net primary production DN = dissolved nitrogen PN = particulate nitrogen DP = dissolved phosphorus, PP = particulate phosphorus. C and N fluxes are in units of 1012 moles C and N y1 P fluxes are in units of 1010 moles P y1.

Sutula, M., Bianchi, T.S., and McKee, B. (2004) Effect of seasonal sediment storage in the lower Mississippi River on the flux of reactive particulate phosphorus to the Gulf of Mexico. Limnol. Oceanogr. 49, 2223-2235. 

Fuhs, G. W. Determination of particulate phosphorus by alkaline persulfate digestion. Inter. J. Environ. Anal. Chem. U 123-129 (1971). 

Figure 15.6 Downstream distributions of total particulate phosphorus (PP) between Vargem Grande and 6bidos in the Brazilian Amazon. Distributions are given for both rising- and falling-water periods. Solid dashed and thick gray lines are as defined in Fig. 15.4. All concentrations are pM.

Figure 15.7 Fine (< 65 ]im) and coarse (> 65 pm) particulate organic carbon (POC, top), particulate organic nitrogen (PON, middle), and particulate phosphorus (PP, bottom) versus their respective fine or coarse sediment concentration. The symbol key in the lower panel applies to the entire figure.

Estimates for the partitioning of the oceanic reservoir between dissolved inorganic phosphorus and particulate phosphorus are given in references b and d as follows (2,581-2,600) X 10 mol dissolved inorganic phosphoms (b, d) and (20-21) X 10 mol particulate phosphorus (d, b). 

Howarth et al. (1995) also estimate the total flux of riverine particulate phosphorus to the oceans at 0.23x10 moles P yr , an estimate likely too low because it uses the suspended sediment flux from MilUman and... 

The sources of particulate phosphorus to the seabed include detrital inorganic and organic material transported by rivers to the ocean, biogenic material produced in the marine water column that sinks to the seabed, and atmospheric... 

For phosphorus, for example, / = 0.01 that is, about 99% of the particulate phosphorus reaching the deep sea is oxidized to phosphate and is recycled 1 % is buried in the sediments. 

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