The Response Relationship Between Flushing Time and Water Quality in Xiangxi Bay of the Three Gorges Reservoir

Conference paper
Part of the Environmental Earth Sciences book series (EESCI)

Abstract

For the problem of the spring blooms in the tributary embayment of the Three Gorges Reservoir, 3D hydrodynamic and water quality mode based on the background of Xiangxi River analyzed the response relationship between flushing time and water quality of Xiangxi Bay during the discharge period. The results show that in the upper reaches and near the estuary of the bay, chlorophyll and dissolved silicon concentration are smaller. The chlorophyll concentration in the waters of 12.5 km (in spring, 2005) and 7.5 km (in spring, 2007) away from the estuary remained at a relatively high value, while the dissolved silicon concentration is the opposite. In general, there was a positive correlation between flushing time and chlorophyll concentration, but a negative correlation between flushing time and nutrient salt for the growth of algae. The results can provide a reference for preventing the water environment problems of the tributary embayment.

Keywords

Tributary embayment Flushing time Water quality 3D-hydrodynamic and water quality model 

Notes

Acknowledgements

The authors gratefully acknowledge the research support of Science and technology plan projects in Zhejiang province of China under grant number 2017F30013.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Zhejiang Institute of Hydraulics & EstuaryHangzhouChina

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