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Policy Innovation and Governance for Irrigation Sustainability in the Arid, Saline San Joaquin River Basin

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  • Nigel W. T. Quinn

    (Climate and Environmental Sciences Division, Berkeley National Laboratory, Berkeley, CA 94720, USA)

Abstract

This paper provides a chronology and overview of events and policy initiatives aimed at addressing irrigation sustainability issues in the San Joaquin River Basin (SJRB) of California. Although the SJRB was selected in this case study, many of the same resource management issues are being played out in arid, agricultural regions around the world. The first part of this paper provides an introduction to some of the early issues impacting the expansion of irrigated agriculture primarily on the west side of the San Joaquin Valley and the policy and capital investments that were used to address salinity impairments to the use of the San Joaquin River (SJR) as an irrigation water supply. Irrigated agriculture requires large quantities of water if it is to be sustained, as well as supply water of adequate quality for the crop being grown. The second part of the paper addresses these supply issues and a period of excessive groundwater pumping that resulted in widespread land subsidence. A joint federal and state policy response that resulted in the facilities to import Delta water provided a remedy that lasted almost 50 years until the Sustainable Groundwater Management Act of 2014 was passed in the legislature to address a recurrence of the same issue. The paper describes the current state of basin-scale simulation modeling that many areas, including California, are using to craft a future sustainable groundwater resource management policy. The third section of the paper deals with unique water quality issues that arose in connection with the selenium crisis at Kesterson Reservoir and the significant threats to irrigation sustainability on the west side of the San Joaquin Valley that followed. The eventual policy response to this crisis was incremental, spanning two decades of University of California-led research programs focused on finding permanent solutions to the salt and selenium contamination problems constraining irrigated agriculture, primarily on the west side. Arid-zone agricultural drainage-induced water quality problems are becoming more ubiquitous worldwide. One policy approach that found traction in California is an innovative variant on the traditional Total Maximum Daily Load (TMDL) approach to salinity regulation, which has features in common with a scheme in Australia’s Hunter River Basin. The paper describes the real-time salinity management (RTSM) concept, which is geared to improving coordination of west side agricultural and wetland exports of salt load with east side tributary reservoir release flows to improve compliance with river salinity objectives. RTSM is a concept that requires access to continuous flow and electrical conductivity data from sensor networks located along the San Joaquin River and its major tributaries and a simulation model-based decision support designed to make salt load assimilative capacity forecasts. Web-based information dissemination and data sharing innovations are described with an emphasis on experience with stakeholder engagement and participation. The last decade has seen wide-scale, global deployment of similar technologies for enhancing irrigation agriculture productivity and protecting environmental resources.

Suggested Citation

  • Nigel W. T. Quinn, 2020. "Policy Innovation and Governance for Irrigation Sustainability in the Arid, Saline San Joaquin River Basin," Sustainability, MDPI, vol. 12(11), pages 1-38, June.
  • Handle: RePEc:gam:jsusta:v:12:y:2020:i:11:p:4733-:d:369515
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    References listed on IDEAS

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    1. Zilberman, David & Khanna, Madhu & Lipper, Leslie, 1997. "Economics of new technologies for sustainable agriculture," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 41(1), pages 1-18.
    2. Quinn, Nigel W.T., 2011. "Adaptive implementation of information technology for real-time, basin-scale salinity management in the San Joaquin Basin, USA and Hunter River Basin, Australia," Agricultural Water Management, Elsevier, vol. 98(6), pages 930-940, April.
    3. Margriet F. Caswell & David Zilberman, 1986. "The Effects of Well Depth and Land Quality on the Choice of Irrigation Technology," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 68(4), pages 798-811.
    4. Carlson, Gerald A. & Zilberman, David & Miranowski, John, 1993. "Agricultural and Resource Economics," Staff General Research Papers Archive 11104, Iowa State University, Department of Economics.
    5. Amninder Singh & Nigel W. T. Quinn & Sharon E. Benes & Florence Cassel, 2020. "Policy-Driven Sustainable Saline Drainage Disposal and Forage Production in the Western San Joaquin Valley of California," Sustainability, MDPI, vol. 12(16), pages 1-27, August.
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    Cited by:

    1. Amninder Singh & Nigel W. T. Quinn & Sharon E. Benes & Florence Cassel, 2020. "Policy-Driven Sustainable Saline Drainage Disposal and Forage Production in the Western San Joaquin Valley of California," Sustainability, MDPI, vol. 12(16), pages 1-27, August.
    2. Nigel W. T. Quinn & James D. Oster, 2021. "Innovations in Sustainable Groundwater and Salinity Management in California’s San Joaquin Valley," Sustainability, MDPI, vol. 13(12), pages 1-21, June.

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