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A solution of the inorganic carbon mass balance equation and its relation to algal growth rates
Author(s) -
Kelly Mahlon G.,
Church M. Robbins,
Hornberger George M.
Publication year - 1974
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr010i003p00493
Subject(s) - alkalinity , groundwater , environmental science , total inorganic carbon , dissolved organic carbon , biomass (ecology) , hydrology (agriculture) , carbon fibers , nutrient , environmental chemistry , carbon dioxide , ecology , chemistry , geology , mathematics , biology , geotechnical engineering , organic chemistry , algorithm , composite number
The mass balance equation describing the dissolved inorganic carbon content of river water is solved for varying conditions of net community productivity, alkalinity, temperature, atmospheric exchange, and accrual of groundwater carbon to give CO 2 concentration throughout the day. Without accrual of groundwater the CO 2 concentration must lie in the range where it will influence growth rate of some plant species, but groundwater input prevents this situation in most rivers. In lakes, groundwater input and exchange with the aphotic zone may prevent the influence of CO 2 on algal growth rates. In waters with little groundwater input or little vertical mixing the CO 2 concentration may influence relative growth rates of species and thus the community composition but probably not the total plant biomass produced.