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Thoughts on the Tradeoffs between Food Production and Water Quality in the U.S. Catherine L. Kling I owa State University   IFPRI Board Policy Seminar December 5, 2011 Washington DC
Source of Tradeoffs ,[object Object],[object Object],[object Object],[object Object],[object Object]
How to Measure these Tradeoffs? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Gulf Hypoxia  ,[object Object],[object Object],[object Object],[object Object],[object Object]
World wide hypoxic zones
Thoughts on the Tradeoffs between Food Production and Water Quality in the U.S.
Square kilometers Year n.d. Area of Mid-Summer Bottom Water Hypoxia (Dissolved Oxygen < 2.0 mg/L) Data source: N.N. Rabalais, Louisiana Universities Marine Consortium, R.E. Turner, Louisiana State University Funded by: NOAA, Center for Sponsored Coastal Ocean Research 5-yr   average goal long-term average
[object Object],[object Object],[object Object],Upper Mississippi River Basin
Reduced Fertilizer  ,[object Object],[object Object],[object Object]
Approximating costs of fertilizer reductions
Land Retirement (CRP) Panoramic view of gamma grass-big blue stem planting http://www.fsa.usda.gov/Internet/FSA_Image/ia_767_15.jpg
Ag Farmland Values “ Two recent land value surveys reported a 22% increase in Nebraska from February 2010 to February 2011, and prices up 25% in Iowa from March 2010 to March 2011. (Johnson, Wilson, and Van Newkirk, 2011; Iowa Farm and Land, Chapter 2, 2011)”  Mike Duffy, Choices,
Tradeoffs of NPS control costs and  water quality benefits   ,[object Object],“ Least Cost Control of Agricultural Nutrient Contributions to the Gulf of Mexico Hypoxic Zone,” Sergey Rabotyagov, Todd Campbell, Manoj Jha, H. Feng, Philip W. Gassman, Lyubov Kurkalova, Silvia Secchi, and Catherine L. Kling.
Consequences of seeking a 30% reduction in NO 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Final Thoughts ,[object Object],[object Object],[object Object],[object Object]

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Thoughts on the Tradeoffs between Food Production and Water Quality in the U.S.

  • 1. Thoughts on the Tradeoffs between Food Production and Water Quality in the U.S. Catherine L. Kling I owa State University IFPRI Board Policy Seminar December 5, 2011 Washington DC
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  • 7. Square kilometers Year n.d. Area of Mid-Summer Bottom Water Hypoxia (Dissolved Oxygen < 2.0 mg/L) Data source: N.N. Rabalais, Louisiana Universities Marine Consortium, R.E. Turner, Louisiana State University Funded by: NOAA, Center for Sponsored Coastal Ocean Research 5-yr average goal long-term average
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  • 10. Approximating costs of fertilizer reductions
  • 11. Land Retirement (CRP) Panoramic view of gamma grass-big blue stem planting http://www.fsa.usda.gov/Internet/FSA_Image/ia_767_15.jpg
  • 12. Ag Farmland Values “ Two recent land value surveys reported a 22% increase in Nebraska from February 2010 to February 2011, and prices up 25% in Iowa from March 2010 to March 2011. (Johnson, Wilson, and Van Newkirk, 2011; Iowa Farm and Land, Chapter 2, 2011)” Mike Duffy, Choices,
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Hinweis der Redaktion

  1. Use yield curves for corn-soybean rotation for Iowa, and N application rate information to get predicted yield reduction Use $3.54/bu corn price to compute the revenue effect