Global hydrological cycle and geochemical balance of phosphorus in the ocean

The data are generalized on the principal input and output items of the pho sphorus geochemical balance in the ocean. The actual geochemical balance of the phosphorus supply to the ocean (31.1 million t/year) was shown to be n early twice that of the inflow of the element noted during the preindustria l epoch (13.8 million t/year). The additional phosphorus supply from anthro pogenic sources is supposed to cause a pronounced growth of biological prod uctivity of seas and oceans and to promote, in turn, the distortion of the native dynamical equilibrium of CO2 in the ocean-atmosphere system. Thus, C O2 is actually absorbed by the ocean, whereas, during geological history, t he latter was a source of atmospheric CO2.