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Management of Nitrate Loading in the Chao Phraya Estuary

  • Prida Thimakorn
Conference paper
Part of the Coastal and Estuarine Studies book series (COASTAL, volume 36)

Abstract

Nitrate loading in the Chao Phraya estuary, derived primarily from agricultural waste, is considered to be the most significant factor in causing oxygen depletion. In order to maintain appropriate levels of dissolved oxygen in the estuary control of nitrate loading is required. This paper describes a simulation model of nitrate dispersion in the Chao Phraya estuary, which allows the normalized nitrate distribution over the estuary in the dry season to be determined. By introducing a number of fictitious nitrate loadings at the upper boundary, the distribution of dissolved oxygen in the estuary is obtained. Further by employing the limiting level of dissolved oxygen at 2 mg/1 (the survival limit of biota), the pattern of allowable nitrate loading is elaborated.

Keywords

Dissolve Oxygen River Mouth Tidal Cycle Dispersion Coefficient Nitrate Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Chernbumroong S (1987) Water quality of estuaries in the inner Gulf of Thailand, 1986. Proceedings of the Fourth Seminar on the Water Quality and the Quality of the Living Resources in Thai Waters, 7-9 July 1987. National Research Council of Thailand, Bangkok, ThailandGoogle Scholar
  2. Hormchong T (1989) Population dynamic studies on phytoplankton and zooplankton in connection with Eastern Seaboard Development Project. First Symposium of the Association of Southeast Asian Marine Scientists (ASEAMS), United Nations Environment Programme, Manila, February 1989Google Scholar
  3. Thatcher ML, Harleman DRF (1972) A Mathematical Model for the Prediction of the Unsteady Salinity Intrusion in Estuaries. Technical Report No. 144, Ralph M. Parsons Laboratory for Water Resources and Hydraulics, Department of Civil Engineering, MIT, USAGoogle Scholar
  4. Torranin P (1969) A Tidal Mathematical Model of the Chao Phraya River. Thesis No. 247, Asian Institute of Technology, Bangkok, ThailandGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Prida Thimakorn
    • 1
  1. 1.Regional Research and Development CenterAsian Institute of TechnologyBangkokThailand

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