A study on dissolved oxygen budgets in natural and artificial lakes

Field survey was conducted to evaluate the major factors which control dissolved oxygen (DO) concentration in water bodies at Lake Yunoko (0.33 km 2) and Lake Kamafusa (2.66 km 2). Seasonally measured DO profiles resulted from phenomena such as oxygen production by photosynthesis, oxygen consumption...

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Bibliographic Details
Published in:Ecological modelling 1986, Vol.31 (1), p.283-292
Main Authors: Takasaki, Mitsuru, Sato, Atsuhisa, Okada, Mitsumasa, Sudo, Ryuichi
Format: Article
Language:English
Subjects:
Applied sciences
Continental surface waters
dissolved oxygen
Exact sciences and technology
Freshwater
Japan, Kamafusa L
Japan, Yunok L
lakes
mathematical models
Natural water pollution
oxygen consumption
Pollution
respiration
sediments
Water treatment and pollution
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Summary:Field survey was conducted to evaluate the major factors which control dissolved oxygen (DO) concentration in water bodies at Lake Yunoko (0.33 km 2) and Lake Kamafusa (2.66 km 2). Seasonally measured DO profiles resulted from phenomena such as oxygen production by photosynthesis, oxygen consumption by respiration and/or sediment oxygen demand were also presented. A mathematical model for calculating DO concentration in the lakes was developed. Major factors to control hypolimnetic oxygen depletion were calculated. As the results of calculation, it was demonstrated that the largest depletion in DO at the bottom layer was caused mainly by the sediment oxygen demand on the oxygen budget at Lake Yunoko in early summer. However, after DO depletion in the hypolymnion, water column oxygen demand became to a dominant factor to control vertical DO profiles.
ISSN:0304-3800
1872-7026
DOI:10.1016/0304-3800(86)90069-4