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Irrigation demand and supply given projections of climate and land use change in Yolo County, California
The study uses the Water Evaluation And Planning (WEAP) system to model irrigation demand and supply in California's Cache Creek watershed. It finds that climate change will significantly increase irrigation demand, which cannot be fully met by reservoir releases due to legal limits, necessitating increased groundwater extraction. While changing cropping patterns alone are insufficient to offset climate-driven demand, combining diversified, water-efficient cropping with technology improvements can reduce demand to 12% below historical means and lower groundwater pumping.
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Document type: Research paper