Research Flash
A Numerical Study on Ecosystem in Lake Biwa by Hydrodynamic-Ecosystem Coupled Model
2007 Volume 59 Issue 1 Pages 21-26
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2007 Volume 59 Issue 1 Pages 21-26
The effects of climate change on ecosystem of Lake Biwa in the latest 20 years are studied numerically by three-dimensional hydrodynamic-ecosystem coupled model. In particular, the present study focuses on understanding of the mechanism why the tension of dissolved oxygen recently decreases at the deepest point in Lake Biwa. As a result of numerical simulation, it is revealed that decrease in the tension of dissolved oxygen is attributed to delay of oxygen supply to bottom water from the upper layer, and to further eutrophication of waters in North Basin of Lake Biwa due to global warming in winter. [This abstract is not included in the PDF]
