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Water use in Irrigated Agriculture Ana Ramirez

Water use in Irrigated Agriculture Ana Ramirez. Why it matters?. Irrigated agriculture produces 40% of the food crops uses 70% of all water withdrawals ( Huffaker 2003). 2007 Rice production (000 t) World 650,193. USA 8,956 Texas 9,565 cwt

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Water use in Irrigated Agriculture Ana Ramirez

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  1. Water use in Irrigated Agriculture • AnaRamirez

  2. Why it matters? • Irrigated agriculture • produces 40% of the food crops • uses 70% of all water withdrawals • (Huffaker 2003) • 2007 Rice production (000 t) • World 650,193 • USA 8,956 • Texas 9,565 cwt • FAO Statistics Division 2008 • USA rice

  3. Location • Lakeside irrigation District • County: Colorado, Wharton • 1st crop: 247 fields / 23,012 acres • 2nd crop:118 fields /11,485 acres Fields in production 2006-2008 Estimating Water Demands for Irrigation Districts on the Lower Colorado River David R. Kracman

  4. Growing Season Time between a field’s first water delivery and its last water delivery. • 2006 • 93 days • 20 April-22 July • 78.58 °F • 2007 • 82 days • 19 May-10 August • 79.57 °F • 2008 Beg_date Split date • Weather data • Daily average during the average growing season

  5. Sources • Graph of thiessenpolygones and stations w/labels • Data • National Climate Data Center • Lower Colorado River Authority • Texas A&M AgriLIFER Center • Calculate Evapotranspiration • FAO r • Penman-Monteith • Combination Method

  6. Temperature

  7. Precipitation

  8. Evaporation

  9. Conclusions • Water consumption • Increase water demand & decrease supply • Water consumption in 2nd crop is higher • Other factors to consider • Conservation measures • Management practices • Things to do • Incorporate rice coefficient • Calculate and graph storage

  10. Questions

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