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Environmental decision support system development for seasonal wetland salt management in a river basin subjected to water quality regulation

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  • Quinn, Nigel W.T.

Abstract

Seasonally managed wetlands in the Grasslands Basin on the west-side of California's San Joaquin Valley provide food and shelter for migratory wildfowl during winter months and sport for waterfowl hunters during the annual duck season. Surface water supply to these wetlands contain salt which, when drained to the San Joaquin River (SJR) during the annual drawdown period, can negatively impact water quality and cause concern to downstream agricultural riparian water diverters. Recent environmental regulation, limiting discharges salinity to the SJR and primarily targeting agricultural non-point sources, now also targets return flows from seasonally managed wetlands. Real-time water quality management has been advocated as a means of continuously matching salt loads discharged from agricultural, wetland and municipal operations to the assimilative capacity of the SJR. Past attempts to build environmental monitoring and decision support systems (EDSS's) to implement this concept have enjoyed limited success for reasons that are discussed in this paper. These reasons are discussed in the context of more general challenges facing the successful implementation of a comprehensive environmental monitoring, modelling and decision support system for the SJR Basin.

Suggested Citation

  • Quinn, Nigel W.T., 2009. "Environmental decision support system development for seasonal wetland salt management in a river basin subjected to water quality regulation," Agricultural Water Management, Elsevier, vol. 96(2), pages 247-254, February.
    • Handle: RePEc:eee:agiwat:v:96:y:2009:i:2:p:247-254
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    Citations

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    Cited by:

    1. Jia, Z. & Luo, W. & Xie, J. & Pan, Y. & Chen, Y. & Tang, S. & Liu, W., 2011. "Salinity dynamics of wetland ditches receiving drainage from irrigated agricultural land in arid and semi-arid regions," Agricultural Water Management, Elsevier, vol. 100(1), pages 9-17.
    2. Li, Shan & Wu, Miao & Jia, Zhonghua & Luo, Wan & Fei, Liangjun & Li, Jingsi, 2021. "Study on drainage strategy of ditch wetland in semi-arid area under the influence of inflow from the upstream irrigation area," Agricultural Water Management, Elsevier, vol. 248(C).
    3. Yang, Wei, 2011. "A multi-objective optimization approach to allocate environmental flows to the artificially restored wetlands of China's Yellow River Delta," Ecological Modelling, Elsevier, vol. 222(2), pages 261-267.
    4. Wichelns, Dennis & Qadir, Manzoor, 2015. "Achieving sustainable irrigation requires effective management of salts, soil salinity, and shallow groundwater," Agricultural Water Management, Elsevier, vol. 157(C), pages 31-38.

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