4.5 Article

Economic tradeoff between domestic well impact and reduced agricultural production with groundwater drought management: Tulare County, California (USA), case study

期刊

HYDROGEOLOGY JOURNAL
卷 30, 期 1, 页码 3-19

出版社

SPRINGER
DOI: 10.1007/s10040-021-02409-w

关键词

Groundwater management; Agriculture; Domestic wells; USA

资金

  1. State of California
  2. S.D. Bechtel Foundation
  3. UC Davis Center for Watershed Sciences
  4. UC Davis Department of Civil and Environmental Engineering
  5. Public Policy Institute of California

向作者/读者索取更多资源

The study evaluated equitable and effective pumping allocations for drought in the context of intensive groundwater use during the 2012-2016 drought in Tulare County, California. It found that adding a fee for additional drought groundwater pumping may be a more impactful and balanced management policy approach for conflicting user groups with differing interests. This approach could help reduce domestic well impacts from drought and balance agricultural impacts with the need for additional drought pumping.
Formal policy analysis can aid resource management where groundwater is used intensively. Approaches for developing equitable and effective pumping allocations for drought are evaluated in the context of the 2012-2016 drought in Tulare County, California, USA. Potential economic impacts of policy alternatives on two user groups with conflicting interests are considered. Tradeoffs between losses of agricultural profit and response costs for domestic wells that run dry are estimated for various maximum groundwater depth policies. A welfare maximizing approach for identifying policies that limit depth to groundwater is evaluated and found to be ineffective because agricultural opportunity costs are much larger than domestic well costs. Adding a fee for additional drought groundwater pumping is proposed as a more impactful and balanced management policy approach. For the case study presented, a fee range of $300 to $600/acre-foot ($300-$600/1,233 m(3)) yielded an effective groundwater management policy for reducing domestic well impacts from drought and balancing agricultural impacts of drought with the need to replenish additional drought pumping in wetter years. Recent management policies enacted in the study area agree with this finding. These results may provide a useful perspective for analytically examining and developing groundwater management policies near the study area and elsewhere.

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