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Road Map: Valuing Water in Irrigated Agriculture

Valuing Colorado's Agriculture: A Workshop for Water Policy Makers Monday, October 7, 2013 Cheyenne Mountain Resort Colorado Springs Colorado Agricultural Water Alliance Colorado Water Institute Frank A. Ward Ag, Consumer, and Environmental Sciences (ACES) New Mexico State University USA.

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Road Map: Valuing Water in Irrigated Agriculture

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  1. Valuing Colorado's Agriculture: A Workshop for Water Policy MakersMonday, October 7, 2013 Cheyenne Mountain ResortColorado SpringsColorado Agricultural Water Alliance Colorado Water InstituteFrank A. WardAg, Consumer, and Environmental Sciences (ACES)New Mexico State University USA

  2. Road Map: Valuing Water in Irrigated Agriculture • Why • How • What • So What

  3. Why • Information on irrigation water’s economic value enables informed choices on water • development • conservation • transfers • allocation • purification • protection • when growing demands for all uses occur with • increased scarcity • climate variability

  4. Why: Inform Choices for 9 Basin Study Areas in Colorado

  5. Why: Address Policy Debates • Growing population, fixed water supplies, climate variability, declining aquifers • What role for water conservation initiatives? • Should new storage be developed or existing ones be repaired or dredged? • What methods are available to reduce declining water levels in aquifers (what works?) • What are the best methods to reduce declining water levels in aquifers? (what pays?)

  6. How: We Measure Economic Value of Water • Willingness to pay for making a change in the status quo of water • Changes in quantity • Changes in quality • Changes in timing • Changes in location • It’s about valuing changes in one of those four dimensions of water use. • Typically requires an economic model grounded in a physical reality

  7. How: Marginal Value of Irrigation Water (change in net income)

  8. What economic value? • Public v. Private value • Financial v. Economic value • Global v. National v. Regional v. Local value • Very short run v. short run v. long run value • Total v. Average v. Marginal value

  9. So What? • Future Information on water’s economic value in irrigation will inform choices on water • development • conservation • transfers • allocation • purification • protection • When growing demands for all uses occur with • population growth • growing incomes • climate variability

  10. References • R.A. Young and S.L. Gray (1972), The economic value of water: Concepts and empirical estimates, Unpublished Report to the National Water Commission. CSU • R.A. Young, Determining the Economic Value of Water: Concepts and Methods (2005), Resources for the Future. • F.A. Ward and Ari Michelsen (2002), “The Economic Value of Water in Agriculture: Concepts and Policy Applications,” Water Policy.

  11. Thank You

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