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THE DETERMINATION OF PRIMARY PRODUCTION IN A STREAM USING AN EXACT SOLUTION TO THE OXYGEN BALANCE EQUATION 1
Author(s) -
Hornberger George M.,
Kelly Mahlon G.
Publication year - 1972
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1972.tb05222.x
Subject(s) - eutrophication , energy balance , streams , environmental science , production (economics) , balance equation , upstream (networking) , balance (ability) , saturation (graph theory) , hydrology (agriculture) , mathematics , computer science , chemistry , thermodynamics , statistics , physics , engineering , markov process , nutrient , geotechnical engineering , medicine , computer network , macroeconomics , organic chemistry , markov model , combinatorics , economics , physical medicine and rehabilitation
. A promising technique for recognition of early stages of cultural eutrophication relies on determining production and respiration in streams. The most successful and most widely used method of estimating production of a segment of a stream is the upstream‐downstream, diurnal curve method introduced by Odum [1956]. This technique is equivalent to obtaining an approximate solution to the oxygen balance equation. We report here an exact solution of the balance equation as a method for calculating primary production. Data presented by Owens [1966] are analyzed; effects of depth and oxygen saturation are studied. A major advantage of the method described here is that continuous temporal variation of net production may be rigorously handled. The method is shown to be well suited to our ultimate goal of studying energy budgets of streams, and thereby the eutrophication process.