Talk:Phosphorus cycle

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Wiki Education Foundation-supported course assignment[edit]

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Wiki Education Foundation-supported course assignment[edit]

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Untitled[edit]

If anyone can add or cleanup this article, please do. Ecology's really not my thing; I only wrote this to stop people from creating nonsense articles here. — Knowledge Seeker দ 06:24, 11 Apr 2005 (UTC)

Diagram[edit]

Would benefit from a diagram of the complete P cycle, with more detailed labelling and process information Jebus989 (talk) 16:15, 15 January 2009 (UTC)[reply]

Planetary boundaries[edit]

Extended content

Add The amount of phosphorous per year released into the oceans is a Planetary boundaries metric. 99.19.46.34 (talk) 03:48, 30 March 2011 (UTC)[reply]

Why? — Arthur Rubin (talk) 08:29, 30 March 2011 (UTC)[reply]

Why, what? 99.109.126.34 (talk) 17:10, 30 March 2011 (UTC)[reply]

Resource for Planetary boundaries: "Boundaries for a Healthy Planet" by Jonathan Foley, Gretchen C. Daily, Robert Howarth, David A. Vaccari, Adele C. Morris, Eric F. Lambin, Scott C. Doney, Peter H. Gleick and David W. Fahey Scientific American April 2010 99.190.85.150 (talk) 19:03, 30 March 2011 (UTC)[reply]

You're advertising the topic, just as you were advertising 350.org when I first noticed you. A separate source commenting on the notability of the the article planetary boundaries should be needed. — Arthur Rubin (talk) 19:19, 30 March 2011 (UTC)[reply]

Scientific American article are based on other citations internal in Scientific American articles already, see above article. Moot. Continue on Talk:Planetary boundaries? 99.119.128.35 (talk) 21:42, 30 March 2011 (UTC)[reply]

Wrong. And we have not resolved the question of whether any tangential links to planetary boundaries are appropriate. — Arthur Rubin (talk) 10:17, 31 March 2011 (UTC)[reply]

Arthur, please help me understand what you are attempting to say, what tangential links? Did you say you wanted supporting links (a separate source relating) in Talk:Ocean acidification? Wouldn't the Talk be simpler on Talk:Planetary boundaries if you make slightly different comments on the related boundaries' articles? 108.73.113.97 (talk) 00:50, 1 April 2011 (UTC)[reply]

As far as I'm concerned, and unless you can provide a consensus otherwise, any link from a "planetary boundary" to planetary boundaries is tangential. Much of this discussion could be centralized in Talk:Planetary boundaries, but, even if there should be a link from the boundary to planetary boundaries, with some rare exceptions, you've selected a clearly wrong article to link planetary boundaries from. — Arthur Rubin (talk) 05:30, 1 April 2011 (UTC)[reply]

The only one I see not in consensus is you Rubin. That is the one and only thing that is clear, I see. 99.190.87.1 (talk) 18:32, 1 April 2011 (UTC)[reply]

The only one I see in agreement with you is you. — Arthur Rubin (talk) 06:15, 2 April 2011 (UTC)[reply]

More: Stephen R. Carpenter and Elena M Bennett, Reconsideration of the planetary boundary for phosphorus Environmental Research Letters 6 (January-March 2011) http://iopscience.iop.org/1748-9326/6/1/014009 209.255.78.138 (talk) 18:53, 5 April 2011 (UTC)[reply]

Apparently a better source, but doesn't seem to support the sentence you want to add. — Arthur Rubin (talk) 06:36, 6 April 2011 (UTC)[reply]

What sentence? It is a reference. Why do you write apparently and doesn't seem? See Wikipedia:WEASEL. Please write more clearly if possible, so we may edit more efficiently. 209.255.78.138 (talk) 18:33, 7 April 2011 (UTC)[reply]

The sentence you wanted to add was The amount of phosphorous per year released into the oceans is a Planetary boundaries metric. That is the sentence not supported by your new reference. — Arthur Rubin (talk) 21:52, 7 April 2011 (UTC)[reply]

P discharge to the oceans directly from iopscience.iop.org's Environmental Research Letters Reconsideration of the planetary boundary for phosphorus Abstract. 99.19.44.88 (talk) 05:22, 15 April 2011 (UTC)[reply]

Please learn to read, before posting. That abstract does not say that. — Arthur Rubin (talk) 07:43, 15 April 2011 (UTC)[reply]

Phosphorus (P) is a critical factor for food production, yet surface freshwaters and some coastal waters are highly sensitive to eutrophication by excess P. A planetary boundary, or upper tolerable limit, for P discharge to the oceans is thought to be ten times the pre-industrial rate, or more than three times the current rate. However this boundary does not take account of freshwater eutrophication. We analyzed the global P cycle to estimate planetary boundaries for freshwater eutrophication. Planetary boundaries were computed for the input of P to freshwaters, the input of P to terrestrial soil, and the mass of P in soil. Each boundary was computed for two water quality targets, 24 mg P m − 3, a typical target for lakes and reservoirs, and 160 mg m − 3, the approximate pre-industrial P concentration in the world's rivers. Planetary boundaries were also computed using three published estimates of current P flow to the sea. Current conditions exceed all planetary boundaries for P. Substantial differences between current conditions and planetary boundaries demonstrate the contrast between large amounts of P needed for food production and the high sensitivity of freshwaters to pollution by P runoff. At the same time, some regions of the world are P-deficient, and there are some indications that a global P shortage is possible in coming decades. More efficient recycling and retention of P within agricultural ecosystems could maintain or increase food production while reducing P pollution and improving water quality. Spatial heterogeneity in the global P cycle suggests that recycling of P in regions of excess and transfer of P to regions of deficiency could mitigate eutrophication, increase agricultural yield, and delay or avoid global P shortage.

Bolding is mine. Reconsideration of the planetary boundary for phosphorus is the title, if you are still confused (and confusing). 99.181.133.155 (talk) 03:48, 16 April 2011 (UTC)[reply]

Ionic phosphorus?[edit]

"Phosphorus is an essential nutrient for plants and animals in the form of ions." Are not the phosphate units incorporated into organic molecules always or typically phosphates (PO4)?--Wetman (talk) 18:18, 3 December 2011 (UTC)[reply]

PO₄^3- is the phosphate ion. I'd assume that is the ionic form referred to in the sentence. Vsmith (talk) 02:58, 4 December 2011 (UTC)[reply]

Copyvio removed[edit]

I've removed a bit of cut-n-paste copyvio from the Human interference section which was added back in 05 2010 by an ip. Vsmith (talk) 23:44, 18 February 2013 (UTC)[reply]

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--Wanbiao (talk) 04:21, 16 February 2019 (UTC)== Added Citations ==[reply]

Some citations that are missing in the article should be added. Reduction and redox speciation of phosphorus can be found in article of “Figueroa, I. A., and J. D. Coates. "Microbial phosphite oxidation and its potential role in the global phosphorus and carbon cycles." In Advances in applied microbiology, vol. 98, pp. 93-117. Academic Press, 2017.”. Usage of phosphorus by organisms can cite “Ruttenberg, K. C., The Global Phosphorus Cycle. In Treatise on Geochemistry (Second Edition), Turekian, K. K., Ed. Elsevier: Oxford, 2014; pp 499-558.” and “Karl, David M. "Microbially mediated transformations of phosphorus in the sea: new views of an old cycle." Annual review of marine science 6 (2014): 279-337.”.Wanbiao (talk) 04:20, 16 February 2019 (UTC) — Preceding unsigned comment added by Wanbiao (talk • contribs) 03:35, 16 February 2019 (UTC)[reply]

Bibliography[edit]

Arai, Yuji, and D. L. Sparks. "Phosphate reaction dynamics in soils and soil components: A multiscale approach." Advances in agronomy 94 (2007): 135-179. https://doi.org/10.1016/S0065-2113(06)94003-6 Benitez-Nelson, Claudia R. "The biogeochemical cycling of phosphorus in marine systems." Earth-Science Reviews 51, no. 1-4 (2000): 109-135. https://doi.org/10.1016/S0012-8252(00)00018-0 Defforey, Delphine, and Adina Paytan. "Phosphorus cycling in marine sediments: advances and challenges." Chemical Geology 477 (2018): 1-11. https://doi.org/10.1016/j.chemgeo.2017.12.002 Figueroa, I. A., and J. D. Coates. "Microbial phosphite oxidation and its potential role in the global phosphorus and carbon cycles." In Advances in applied microbiology, vol. 98, pp. 93-117. Academic Press, 2017. https://doi.org/10.1016/bs.aambs.2016.09.004 Karl, David M. "Microbially mediated transformations of phosphorus in the sea: new views of an old cycle." Annual review of marine science 6 (2014): 279-337. https://doi.org/10.1146/annurev-marine-010213-135046 Paytan, Adina, and Karen McLaughlin. "The oceanic phosphorus cycle." Chemical reviews 107, no. 2 (2007): 563-576. https://pubs.acs.org/doi/abs/10.1021/cr0503613 Ruttenberg, K. C., The Global Phosphorus Cycle. In Treatise on Geochemistry (Second Edition), Turekian, K. K., Ed. Elsevier: Oxford, 2014; pp 499-558. https://doi.org/10.1016/B978-0-08-095975-7.00813-5 Slomp, Caroline P. "Phosphorus cycling in the estuarine and coastal zones." Elsevier/Academic Press, 2011. https://doi.org/10.1016/B978-0-12-374711-2.00506-4 Van Mooy, B. A. S., A. Krupke, S. T. Dyhrman, H. F. Fredricks, K. R. Frischkorn, J. E. Ossolinski, D. J. Repeta, M. Rouco, J. D. Seewald, and S. P. Sylva. "Major role of planktonic phosphate reduction in the marine phosphorus redox cycle." Science 348, no. 6236 (2015): 783-785. DOI: 10.1126/science.aaa8181 Wang, Wei-Lei, J. Keith Moore, Adam C. Martiny, and François W. Primeau. "Convergent estimates of marine nitrogen fixation." Nature 566, no. 7743 (2019): 205. https://doi.org/10.1038/s41586-019-0911-2 — Preceding unsigned comment added by Wanbiao (talk • contribs) 01:51, 23 February 2019 (UTC)[reply]

Wiki Education assignment: EEB 4611-Biogeochemical Processes-Spring 2024[edit]

This article is currently the subject of a Wiki Education Foundation-supported course assignment, between 16 January 2024 and 2 May 2024. Further details are available on the course page. Student editor(s): MitchKrings (article contribs).

— Assignment last updated by Dohanminhtho (talk) 00:29, 3 April 2024 (UTC)[reply]

Planned Changes to the article[edit]

In the eutrophication tab, there is a section dedicated to wetlands/freshwater systems. I would like to add a section about how eutrophication also impacts the oceans/salt waters. Would this be a good idea? MitchKrings (talk) 16:16, 26 March 2024 (UTC)[reply]

I also am going to edit some of the human impact section to give it more quantifiable numbers and to help it flow better. I also altered the lead a little bit to reflect the information that I'm adding as well as to tweak some of the wording to make it run together more smoothly. MitchKrings (talk) 19:47, 14 April 2024 (UTC)[reply]