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Dissolved inorganic carbon is a key component of the biological pump, which is defined as the amount of biologically produced organic carbon flux from the upper ocean to the deep ocean. [6] Dissolved inorganic carbon in the form of carbon dioxide is fixed into organic carbon through photosynthesis.
Total inorganic carbon (C T or TIC) is the sum of the inorganic carbon species. Carbon compounds can be distinguished as either organic or inorganic , and dissolved or particulate , depending on their composition.
Example Bjerrum plot: Change in carbonate system of seawater from ocean acidification.. A Bjerrum plot (named after Niels Bjerrum), sometimes also known as a Sillén diagram (after Lars Gunnar Sillén), or a Hägg diagram (after Gunnar Hägg) [1] is a graph of the concentrations of the different species of a polyprotic acid in a solution, as a function of pH, [2] when the solution is at ...
Bicarbonate is the dominant form of dissolved inorganic carbon in sea water, [9] and in most fresh waters. As such it is an important sink in the carbon cycle. Some plants like Chara utilize carbonate and produce calcium carbonate (CaCO 3) as result of biological metabolism. [10]
Aquatic carbon occurs in different forms. Firstly, a division is made between organic and inorganic carbon. Organic carbon is a mixture of organic compounds originating from detritus or primary producers. It can be divided into POC (particulate organic carbon; particles > 0.45 μm) and DOC (dissolved organic carbon; particles < 0.45 μm). DOC ...
Carbon dioxide solubility in water, temperature dependency. Carbon dioxide, like other gases, is soluble in water.However, unlike many other gases (oxygen for instance), it reacts with water and forms a balance of several ionic and non-ionic species (collectively known as dissolved inorganic carbon, or DIC).
TC includes carbon in any form, whether organic or inorganic, volatile or fixed, dissolved or suspended. In many application areas, rather than TC, a parameter representing of subset of TC is measured; examples include Total organic carbon (TOC), Particulate inorganic carbon (PIC), and Dissolved organic carbon (DOC).
[34] [35] The speciation of dissolved inorganic carbon in the marine carbon cycle is a primary controller of acid-base chemistry in the oceans. Oxygen The oxygen cycle involves biogeochemical transitions of oxygen atoms between different oxidation states in ions , oxides , and molecules through redox reactions within and between the spheres ...